十米之上
如果 [rú guǒ]if in the event that in case相关解释:if and when in the event on condition that on the understanding that supposing provided that... that would be OK if according as 例句:如果这是真的又该如何呢？What if it is true?如果明天天气好，我门宜于出门。If it is fine tomorrow, we should go out.如果他现在回来怎么办？What if he comes back now?
