hydroplane
n
1 light motor boat with a flat bottom, that can travel fast over the surface of the water 机动平底快艇.
2 device on a submarine enabling it to rise or descend (控制潜艇升降的)水平舵.
🗣️ 情景例句
How late are you open?
你们那里开到多晚?
Hold fast when you have it.
紧握你手中之物。
Mr. Smith knew Jack didn't look at the others because he was nervous.