Operatory
a. = operative\\nn. 实验室; 手术室, 手术间
🗣️ 情景例句
but now what?
但下一步怎么办？
Good try, but not quite right.
是个很好的尝试，但并不完全正确。
A sound made by tapping on the hull of a ship will be reflected from the sea bottom,
敲打船体所发了的声音会从海底传回来，