硬着头皮

1. • to brace oneself to do sth
2. • to put a bold face on it
3. • to summon up courage
4. • to force oneself to

Character by character

• 硬(yìng)hard
• 着(zhe)aspect particle indicating action in progress or ongoing state
• 头(tóu)head
• 皮(pí)skin