夜雨初晴999
if/in case/on condition that/on the understanding that/in the event/suppose that/supposing/provided that很全了把~~希望能帮助到你

林小贱灬
What if she forgets to bring it?
要是她忘记带来,会怎么样呢?
'And if I say no?' she ventured.
“那么我要是说不呢?”她试探说。
She asked if I would help.
她问我是否会帮忙。
What if the train is late?
火车要是晚点会怎么样呢?
You may come if you wish.
如果你愿意可以来。
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