make certain

漢語翻譯

例句：

1. Make certain of your position in the firm before you argue with the director.
   你在和經理爭辯之前，要首先弄清你在公司里的地位。
2. The authors wish you to read it with a pencil in your hand, for you will often be asked to make certain notations, to write answers to particular questions.
   作者們希望你在讀這本書的時候手裡要拿上一支鉛筆，因為我們要求你經常做點筆記，或是將一些具體問題的答案寫下來。
3. You'd better leave now if you want to make certain of getting there on time.
   你要想準時到達那裡就最好馬上走。
4. She shook it to make certain there was nothing inside.
   她把它搖了搖，想知道裡面確實沒有東西。