不费

• without great expenditure

例句

1. 他毫不费劲地帮他妹妹解开了这道数学题。
   He solved the maths problem for his younger sister without any difficulty.
2. 我可以毫不费力地囊括十墩牌。
   I can wrap up10 tricks without lifting an eyebrow.
3. 我们毫不费力就做完了工作。
   We did the job without any difficulty.