size up

US /saɪz ʌp/
UK /saɪz ʌp/
"size up" picture
1.

评估, 判断

to assess or evaluate a person or situation

:
He tried to size up his opponent before the match.
他试图在比赛前评估他的对手。
She quickly sized up the situation and knew what to do.
她迅速评估了情况,知道该怎么做。