n. U形转弯, (喻)方向的改变
在线英汉词典
U-turn的短语、例句：
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.
U-turn