join up

US /dʒɔɪn ʌp/
UK /dʒɔɪn ʌp/
"join up" picture
1.

加入, 參加

to become a member of an organization, club, or group

:
He decided to join up with the local environmental group.
他決定加入當地的環保組織。
Many young people join up for various social causes.
許多年輕人加入各種社會事業。
2.

參軍, 入伍

to join the armed forces

:
He decided to join up right after high school.
他決定高中畢業後立即參軍
Many young men were encouraged to join up during the war.
戰爭期間,許多年輕人被鼓勵參軍