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大したことではない， 大した事ではない， 大した事では無い， 大したことでは無い， たいしたことではない
1. trivial, not amounting to much, not a big deal
tbd
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心配， しんぱい
1. worry, concern, anxiety, uneasiness, fear
2. care, help, aid, assistance
担心
する， 為る
1. to do, to carry out, to perform
2. to cause to become, to make (into), to turn (into)
3. to serve as, to act as, to work as
4. to wear (clothes, a facial expression, etc.)
5. to judge as being, to view as being, to think of as, to treat as, to use...
做，作，干，执行
