People always look smart in lab coat.
人们穿着实验衣时，看起来好像都很聪明。
And almost certainly a white lab coat.
但一定会有一件白色的大褂。
A man in a white lab coat stepped inside and shut the door behind him.
一位身着白大褂的男子走了进来，关上了身后的房门。
A man in a white lab coat stepped inside and shut the door behind him.
一位身着白大褂的男子走了进来，关上了身后的房门。
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