Definition
to cause someone to lose interest or enthusiasm, particularly in a sexual context
让（某人）失去兴趣（尤其是性方面的）
His rude behavior truly turned me off.
他粗鲁的行为真的让我失去兴趣。
Her habit of biting her nails really turned me off.
她咬指甲的习惯真的让我失去兴趣。
If you ignore personal hygiene on a date, it will turn the other person off.
如果你在约会时忽视个人卫生，会让对方失去兴趣。