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
Not a bad idea, Robbie.
蛮好的主意, Robbie。
Oh, no! Not today, please!
哦,不要!今天就饶了我吧。
But here we come up against the most difficult of all obstacles to contact with people on other planets ----the astronomical distances which separate us.