work up
片語動詞所屬單字work
work up — 片語動詞
1. To develop or increase something gradually, or to prepare something.
1.片語動詞
釋義
逐漸建立；激起
To develop or increase something gradually, or to prepare something.
例句
Min worked up the courage to ask for a promotion.
She worked up a sweat by doing jumping jacks.