They can exist in two forms, which are mirror images of each other like hands.
它们可以以两种形式存在，互为镜像，就像双手一样。
答案以两种形式出现。
The final product comes in two forms.
成品有两种形式。
So, we've seen the statement of Green's theorem in two forms.
我们已经了解了，格林公式的两种表达形式。
It comes in two forms: big picture and small focus.
它有两种形式：宏大图景与微距焦点。
It usually comes in two forms.
它通常有两种形式。
It usually comes in two forms.
它通常有两种形式。
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