例句與造句

1. There are many ways to prepare for certification exams , one of them being through the use of exam simulators
   有很多方法準(zhǔn)備認(rèn)證考試,其中之一是通過(guò)利用考試模擬器
2. It's difficult to find exam simulators in a sentence. 用exam simulators造句挺難的