肌肉发生的起始和生肌节的形成是胚胎肌肉发育中的两个关键事件。
The initiation of myogenesis and the formation of myotome are two critical eventsin myogenesis.
你可以察觉到图块的排列，但是指出图块的起始和结束点就有难度了。
You can get a general idea that things line up, but it's difficult to tell where each tile begins and ends.
Schedule页面显示广告的起始和到期日期，以及优先级设置。
The Schedule page shows the start and expiration dates for the advertisement and the priority setting.
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