Cylinders
n. 圆筒( cylinder的复数形式 ); 圆柱; 汽缸; （尤指用作容器的）圆筒状物
🗣️ 情景例句
because the doctors and nurses are so busy?
因为医生和护士们都非常忙？
He works best who knows his trade.
内行的人做他的事一定会做得最好。
We have an old musical instrument.
我家有件古乐器，