slim down （通过节食）减肥，变苗条;精简机构;裁减人员

【例句】
Many firms have had little choice but to slim down.
许多公司几乎别无选择，只能裁减人员。

She tells me that I'll feel better about myself if I slim down.
她告诉我说，如果我减肥了，就会感觉舒服得多。