单词：propellers
propellers的用法和样例：
例句
- Any of various winged vehicles capable of flight, generally heavier than air and driven by jet engines or propellers.飞机各种能够飞行的带翼交通工具，通常比空气重，用喷气式发动机或螺旋桨驱动
- An airplane cannot fly out into space be cause it must have the air for its propellers to push against.飞机不能飞入太空，因为飞机的螺旋桨如果没有空气的反推力推进，是飞不起来的。
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