Liftoff
n. （火箭发射时）起飞, 启动
✅ 同义词
🗣️ 情景例句
I hope he's good when we're away.
我希望我们不在的时候他很乖。
I'm sorry the casserole has gotten over cooked.
对不起，沙锅给炖焦了。
they can locate and steer clear of obstacles -- or locate flying insects on which they feed.
并能通过回声来确定并躲开障碍物，或找到它们赖以为生的昆虫。