1. let out a whistle

吹口哨

eg. And with that he let out a whistle, "Here, Dolly! " he called.

說著，他吹響一聲口哨，“出來， 多利！”他喊道。

eg. I promised my girlfriend a gold necklace for her birthday, but when the jeweler quoted a price for one we liked, I let out a long, low whistle.

我答應(yīng)過我女朋友在她生日時送她一串金項鏈，但當(dāng)珠寶商報出我們喜歡的一串的價格時，我吹了一個又長又低的口哨。

2. seat belts

（飛機、汽車等的）安全帶

eg. Every time we fly, we are reminded to put on our seat belts and of how to use life vests.

每次搭乘飛機，乘務(wù)員都會提醒乘客系好安全帶，并教會乘客如何使用救生衣。

eg. Seat belts protect drivers and passengers in case of accident. They also reduce the effect of a crash on the body.

萬一發(fā)生事故時，座椅帶能保護駕駛員和乘客，同時減少碰撞對人體的沖擊。

3. put on

穿上；上演；增加；假裝；使…上場

eg. She put on her coat and went out.

她穿上外套，出去了。

eg. Maximo put on a pair of glasses.

馬克西莫戴上了一副眼鏡。