名词
中文翻译：孵化期
同义词：
['egg-laying period', 'larval stage']
例句：
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1.The pregastrulation period is crucial for the development of the embryo.
孵化期对胚胎的发展至关重要。
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2. During the pregastrulation period, the egg must be kept at a constant temperature to prevent damage.
孵化期期间，必须将蛋保持在恒定的温度以防止损坏。
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3. Researchers have discovered that certain bacteria can survive in the pregastrulation stage of an egg.
研究人员发现某些细菌可以在蛋的孵化阶段存活。