改变过去，这是一种诱惑，假使是你，又能抗拒吗？

There is no "right". You can't change what people are without destroying who they were.

youdao

假使奥巴马是个白人，那么情况也许就不尽相同了。

Had Obama been white it would have been different.

youdao

假使你是只鸟，你便会飞了。

If you were a bird, you could fly.

《新英汉大辞典》

So for now assume it's got to be an int or a char.

所以现在假使它是一个整数或字符。

哈佛公开课 - 计算机科学课程节选