I was off my guard and made no suitable reply.

我没提防，因此没有作出适当的回答。

youdao

But he completely caught me off my guard; he strode into my life during that season and set me gently but firmly on a new path.

但是他还是在我猝不及防的时候出现了。他在那个时段进入我的生活，让我重新踏上一条新的道路。

youdao

But when I took out my camera a security guard began Shouting, before marching me off the premises.

但是当我拿出照相机，一个警卫就开始朝我叫喊，后来又把我赶出了教堂的范围。

youdao