tract

n.大片土地；器官系统；[解]道；束

n.小册子

He owns a large tract of forest. 他拥有一大片森林。

He took many photos of the wide tracts of desert in North Africa. 他拍了许多关于北非的广大沙漠的照片。

Osteoporosis is a late complication of digestive tract disease. 骨质疏松症是消化道疾病的晚期并发症之一。

He had an infection in the upper respiratory tract. 他上呼吸道感染。

The tract ascends all the way to the VPL of the thalamus where it synapses on the tertiary neurons. 此束会上升至丘脑腹后外侧核且于此与三级感觉神经元建立突触。

He wrote all the campaign tracts. 这些竞选传单全是他写的。

v.吸引；引来

adj.有吸引力的；有魅力的

n.合同；婚约；合约；契约

v.缩小；订合同；缩短；感染（疾病）；招致

vt.分散；转移；分心；困扰

vt.摘录；提取；拔出；榨出；选取

[计算机] 提取.

n.摘录；精华；榨出物

vt.减去

vi.减少