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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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走り出す, 走りだす, はしりだす
1. to begin to run, to start running, to break into a run
tbd
が
1. indicates the subject of a sentence
2. indicates possession
3. but, however, (and) yet, though, although, while
4. and
5. used after an introductory remark or explanation
6. regardless of ..., whether ... (or not), no matter ...
7. indicates a des...
tbd