involuntarily; against one's will; one's heart is not under one's control
她知道这样做不对，但一看到那些可爱的宠物，就心不由己地想要抱一抱。
She knew it was not right, but as soon as she saw those cute pets, she involuntarily wanted to hug them.
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involuntarily; against one's will; one's heart is not under one's control