n. 管,管状物;电子管;地铁;电视机;
vt. 把…装管;把…弄成管状;用管输送;
vi. 乘地铁;不及格;
tub- 表”管道”
🗣️ 情景例句
I want some whiskey straight up.
我想要些纯威士忌。
I'm writing to a friend of mine in South American.
我在写信给一个美国南部的朋友。
Although mankind has undergone no general improvement in intelligence or morality, it has made extraordinary progress in the accumulation of knowledge.