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一斉に, いっせいに
1. simultaneously, all at once, in unison
同时,齐声
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スタート
1. start, beginning
2. starting (e.g. a race), departing, starting point, starting line
开始,开端;开始(比赛),起点
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