您要查找的是不是：
- I can't say for certain when he will arrive. 我說(shuō)不準他什么時(shí)候會(huì )來(lái)。
- I can't say for certain what to do. 我說(shuō)不準該做什么。
- I couldn't say for certain when he'll arrive. 我說(shuō)不準他什麼時(shí)候到。
- Certain prepositions usually follow certain nouns. 某些介詞通常跟隨某些名詞。
- For certain reasons I will be unable to attend the meeting. 因為某種原因，我不能出席這次會(huì )議。
- I can not say for certain what to do. 我說(shuō)不準該做什么。
- I can't say for certain off-hand. 我還不能馬上說(shuō)定。
- Do you know for certain what will happen to him ? 你肯定他會(huì )碰到什么事嗎?
- We never knew for certain how it happened. 究竟是怎么發(fā)生的，我們始終未搞清楚。
- Nobody knows for certain what kind of man he is -- he's rather a lone wolf. 誰(shuí)也不知道他是什么樣的一個(gè)人--他總愛(ài)獨來(lái)獨往。
- Look at that sky! It's going to rain for certain. 瞧那天空！肯定要下雨了。
- I can not say for certain when he will arrive. 我說(shuō)不準他什么時(shí)候會(huì )來(lái)。
- He may succeed,but I don't know for certain. 他也許能成功，但我不敢肯定。
- We don't know for certain when it happened. 我們不能肯定是在什么時(shí)候發(fā)生的。
- We may succeed,but I can't know for certain. 我們可能成功，但我不敢說(shuō)肯定成功。
- Harris says: "We can't say for certain. 哈里斯說(shuō)：“我們說(shuō)不準。
- I can't say for certain when we'll arrive. 我說(shuō)不準我們什么時(shí)候能到。
- For everything, we can not have it for certain. 萬(wàn)事萬(wàn)物我們其實(shí)都不可能有絕。
- Adjusted sounds for certain objects. 將某些物體的聲音進(jìn)行了一些調整。
- I can't say for certain what my plans are. 我說(shuō)不準我的打算是什么。
