Shutdowns
n. 关闭, 倒闭( shutdown的复数形式 )
🗣️ 情景例句
Eight straight-back chairs. Thirty folding chairs.
八张直背椅。三十张折摺椅。
Mr. Wang is not in now.
王先生现在不在此地。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。