Rappelling
v. 用绳索下口( rappel的现在分词 )
🗣️ 情景例句
Good-bye.
再见。
One cannot eat one's cake and have it.
事难两全其美。
Lined up against the wall, there were long thin wires attached to metal spheres.
靠墙排列着许多细长的电线，而电线又连着金属球。