a molehill 土丘
make a mountain out of a molehill 小题大做
1. The garden was covered with small molehills.
花园里到处都是小土丘。
2. Don't make a mountain out of a molehill; it's not a big deal.
不要小题大做，这没什么大不了的。
3. He spotted a tiny molehill near the fence.
他在篱笆附近发现了一个微小的鼹鼠丘。
A: Why are you so upset about this tiny mistake?
A：你为什么会对这个小错误这么生气呢？
B: I'm not, I just think you're making a mountain out of a molehill.
B：我没生气，我只是觉得你在小题大做。
1) 鼹鼠堆出的土丘
2) 比喻微不足道的小事
1. 鼹鼠丘
e.g.
The lawn was bumpy due to many molehills.
由于许多鼹鼠丘，草坪变得凹凸不平。
noun
1. A small mound of earth made by a mole.
Synonym: mound