Gyromotor
陀螺电动机
🗣️ 情景例句
I would prefer a non-smoking room.
我想要一间不许吸烟的房间。
It is the first step that costs.
万事开头难。
Which may keep company with the vessel for an hour without visible or more than occasional movement of wing.
它们随船飞行一小时也难得见其扇动一下翅膀。