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について, に就いて
1. about, on, regarding, concerning
2. per, for every
关于
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考える, 勘える, 稽える, かんがえる
1. to think (about, of), to think over, to ponder, to contemplate, to reflect (on), to meditate (on)
2. to consider, to bear in mind, to allow for, to take into consideration
3. to think (that), to believe, to hold (a view), to judge, to conclude, to...
想,思考;考虑
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なければならない, なければなりません, なければいけない
1. have to do, must, should, ought to
必须,应该