off guard造句

1、informal or natural; especially caught off guard or unprepared.
非正式的或简单自然的；特别指毫无戒心或准备。

2、The children tried to throw their father off guard and got money.
孩子们企图让父亲放松警惕给他们些钱。

3、He had a way of throwing Helen off guard with his charm when she least expected it.
他有办法用他的魅力让海伦在最意想不到的时候失去戒备。