4000 Duolingo Vocabulary List

n. 球拍 a device consisting of an oval frame with a tightly interlaced network of strings and a handle
I mean, is it really possible for every soldier in the world to drop his or her rifle and pick up a tennis racket instead?

n. 雷達 measuring instrument to detect distant objects by microwave
This enables the radar to detect objects at ranges where other emissions, such as sound or visible light, would be too weak to detect.

a. 發光的,榮光煥發的 brilliant; obviously very happy, or very beautiful
He gave a radiant smile when he heard her news.

a. 根本的,激進的 drastic; extreme; arising from or going to a root or source; basic
President Correa has shown he is determined to follow a radical reform program to tackle poverty in Ecuador.

n. 半徑,半徑範圍 a right line drawn or extending from the center of a circle to the periphery
The police searched all the woods within a six-mile radius.

n. 筏,救生艇 a flat float made of logs or planks;  a large number or amount or extent
They saw a fire smoldering upon a great raft a hundred yards above, and they went stealthily thither and helped themselves to a chunk.

a. 襤褸的,破爛的 torn; worn; having an irregular surface or edge; uneven or jagged in outline
They think of the word only as connected with ragged clothes and scanty food: poverty for me was synonymous with degradation.

n. 拉格泰姆音樂 music with a syncopated melody; musical form, predating jazz
He also is an excellent piano player, with a touch for Scott Joplin ragtime tunes, despite taking lessons for only two years.

v. 責罵,斥責,咆哮 scold; express objections or criticisms in bitter, harsh, or abusive language
You may rail at him all you want; you will never change him.

n. 彩虹 arc of colored light in the sky caused by the refraction of the sun's rays by rain
Do two people ever see the same rainbow?

v. 復原,恢復,召集,集合 call up or summon; call together for a common purpose
Washington quickly decided to rally his troops to fight off the British attack.

n. 集會 gathering, especially one intended to inspire enthusiasm for a cause; reassembling, of troops
According to the Obama campaign, the rally is his largest gathering to date.

n. 農場,牧場 farm consisting of a large tract of land
All the workers have been told to stay away, and the ranch operators are given five days to appeal.

n. 大農場經營者,牧場工人 one who owns or operates a ranch or farm
This rancher never harbored any doubts regarding the land value, which he preferred over any other investment type.  

n. 放牧的 farming for the raising of livestock
Cattle ranching has been a major Texas industry for nearly three centuries.

n. 行列,範圍 limits within which something can be effective; a variety of different things or activities
Medical workers on trial face criminal charges that range from professional recklessness to corruption to illegal sale of donor blood.

v. 擁有社會地位,佔據位置 hold a particular position in a social hierarchy; form or stand in a row or rows
He is expecting to rank first in the class.

n. 排列,歸類 relative position in society; official position or grad; row, line, series, or range
They're expected to give only their name, rank, and number when questioned.

a. 極度貪婪的,捕食的,掠奪的 excessively greedy; predatory; taking by force; plundering
The ruins of the resort are now covered in rapacious island vegetation creeping in from the jungle.

ad. 很少地,罕有地 not often; in an unusual degree; exceptionally
Kazakhstan, a vast territory, broke away from the former Soviet Union only ten years ago and is rarely in the international limelight.