to improve one’s effort or performance
提高自己的努力或表现 (tígāo zìjǐ de nǔlì huò biǎoxiàn)
"If you want that promotion, you need to step up your game."
"如果你想获得晋升，你需要提高你的表现。" (rúguǒ nǐ xiǎng huòdé jìnshēng, nǐ xūyào **tígāo nǐ de biǎoxiàn**.)
to watch for something or someone carefully
to avoid attracting attention; to stay calm and unnoticed
A situation or person that could become dangerous at any mom...
to do something differently from tradition
to politely disagree with someone
to start something energetically and successfully
