例句與造句

1. he has practised upon my credulity .
   他利用我的輕信搞欺詐。
2. and she took wing and went off to see about it-which did not surprise the boy, for he knew of old that this insect was credulous about conflagrations, and he had practised upon its simplicity more than once
   于是它就拍著翅兒飛走了，回家去看到底怎么了湯姆對此一點也不感到奇怪，因為他早就知道這種小蟲子容易相信火災的事情，頭腦又簡單，被捉弄過不止一次了。
3. It's difficult to find practise upon in a sentence. 用practise upon造句挺難的