N-COUNT

(平底)玻璃杯

例句

N-COUNT

（在地上表演的）杂技演员;翻筋斗杂技演员

n.

玻璃酒杯

翻筋斗者;杂技演员

(机枪的)机心

锁的制动栓

<机>转臂;转筒;摆动换向齿轮;转向轮

滚筒式烘干机

(玩具)不倒翁

翻头鸽

Noun

1. a gymnast who performs rolls and somersaults and twists etc.

2. a glass with a flat bottom but no handle or stem; originally had a round bottom

3. a movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown

4. pigeon that executes backward somersaults in flight or on the ground