keep your head的用法和樣例：
例句
- If you can keep your head when all about you are losing theirs and blaming it on you.
如果你周?chē)娜藗兪チ死碇嵌煿帜銜r(shí)，你能夠保持冷靜。 - The cost of living is now so high that you need to earn a good income just to keep your head above water.
生活費用現在是如此之高，必須要有很好的收入才得以維持生活。 - Keep your head down!
不要抬頭！
