up against

US /ʌp əˈɡenst/
UK /ʌp əˈɡenst/
"up against" picture
1.

靠着, 紧挨着

in contact with or close to

:
He leaned up against the wall.
他靠在墙上
The boat was tied up against the dock.
船停靠在码头边
2.

面对, 对抗

facing or contending with (a difficulty or opponent)

:
We are up against a very strong team.
我们面对一个非常强大的团队。
She's up against a tight deadline.
面临一个紧迫的截止日期。