您要查找的是不是：
- If it is collect call, I'm afraid it must be a person to person call,not a station to station call. 若是这样，这一定是叫人电话，而不能是对号电话。
- If it is collect call. 若是这样。
- If it is collect call, 若是这样
- It looks as if it isn't clean enough to bathe here. 看起来海水好像不干净，不能游泳。
- I feel as if it is going to rain. 我觉得好像要下雨了。
- It looks as if it is going to rain. 看来要下雨了。
- If it is fine tomorrow, we could go out. 如果明天天气好，我门能够出门。
- The meat will rot if it isn't kept cool. 肉如果不冷藏就会腐败。
- If it is put across well, the audience will get it. 如果能讲清楚，听众是能理解的。
- The bread will dry out if it is left on the table. 不要把面包放在桌上，它会变干的。
- We will give you a call if it is reported. 一旦它报上来，我们就会给您打电话。
- I'd like to have some salmon if it is on. 如果有大马哈鱼供应,我想来一点。
- Milk goes bad quickly if it is not refrigerated. 如果不冰冻牛奶很快就变酸。
- But I wonder if it is really necessary to run the risks. 但是我不知道是否真的有必要冒险。
- A substance is in liquid state if it is neither gaseous nor solid. 一种物质和果它既不是气态，也不是固态，那它一定以液态形式存在。
- If it isn't my old friend Bob Thomson what a coincidence! 这不是我的老朋友鲍勃·汤姆森吗－－真巧哇！
- Let us press on with our work, even if it is dull and weary. 尽管这项工作枯燥乏味，我们还是干下去吧。
- The raft will be more buoyant if it is less heavy. 木筏若轻一点，浮力就更大了。
- If it is a document, the price is as much as an IDD call. 如果是文字传真，价格和长途直拨电话一样计费。
- He's fussy about his food, if it isn't cooked just right, he won't eat it. 他过分着意于自己所吃的东西，如果不是烹调得恰到好处，他就不吃。
