Pluckiness
勇气（plucky的名词形式）
🗣️ 情景例句
I don't know if I can get to sleep.
我不知道我能否睡得着。
Be prepared to put one's hand in one's pocket.
准备慷慨解囊。
This is done by a great number of ring-shaped air jets on the bottom of the craft.
船底装上大量环状喷气嘴以实现这一目的。