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
Who knows?
谁知道?
Lazy folks take the most pains.
懒汉多吃苦。
She always referred to them as 'the shifting population', for they came and went with such frequency that I never even got a chance to learn their names.