U-turn
n. U形转弯, (喻)方向的改变
📖 牛津释义
U-turn
n
1 turn of 180 (by a car, etc) so as to face in the opposite direction without reversing （汽车等的）180转弯, 向後转, 掉头
No U-turns, ie as a sign on motorways, etc. 禁止後转弯（高速公路等的标牌用语）.
2 (idm 习语) do a `U-turn (infml 口) reverse one's policy 彻底改变政策
The government has done a U-turnon its economic policy. 政府的经济政策已经完全改变了.
🧩 词语组成解析
turn
[tɝn]
vt.& vi. 使转动;旋转;使改变方向;使不适;
vt. 使变酸;使变换;使变为;
n. 翻转;（路线或方向的）改变;机会;
🗣️ 情景例句
We will help your children in learning lessons in their free time.
我们可以帮助您的孩子在他们空闲时学习功课。
I put some photographs in the envelope.
我在信里夹了几张照片。
You'd better hurry and buy a ticket then. It'll be very popular.
那你最好赶紧买张票吧！他的音乐会是很受欢迎的。