1. 鋌而走險 (tǐng ér zǒu xiǎn)- to take a risk out of desperation; taking a risk as the last resort. 鋌: to walk really fast. 走險: to go in the direction of danger.
Example: Desperate to fill his stomach, Aladdin had no choice but to steal, even at the risk of getting caught.
2. 忍俊不禁 (rěn jùn bù jīn)- Cannot help but laugh. 忍: to hold, to restrain. 忍俊: to smile. 不禁: unable to control oneself.
Example: His jokes are always so funny people cannot help but laugh.
3. 賠了夫人又折兵 (péi le fū rén yòu zhé bīng)- Used to describe a loss on both fronts; to lose to a bargain. 賠: to suffer a loss, to pay. 折: to lose, a loss.
Example: She spent a huge chunk of money to join a gym in hopes of getting the perfect body. However, she didn’t used her gym membership and continued to gain weight; even though she spent the money, she still didn’t lose the weight as planned.