这一时期发生了许多重大事件。
有证据表明，这一时期发生了重大的生态和地质变化。
There is evidence of major ecological and geological changes during this period.
这很显然正是发生在青春期的情况。
没有长夏期，这一切都不可能发生。
Without the Long Summer, that never would have been possible.
传播不会在潜伏期发生。
事情发生在早上上班的高峰期。
除此之外，青春期的长度会在特定的社会发生改变。
Furthermore, the length of the adolescent period may change in a given society.
惊厥是妊娠期可能发生的罕见并发症。
Eclampsia is a rare disease that can develop during pregnancy.
套期保值者有责任注意外的样品性能，但没有样品性能已经发生了。
Hedgers are liable to pay attention to out-of-sample performance but not in-sample performance already occurred.
是否处在生长发育期、创伤严重程度与颞下颌关节强直发生密切相关。
There are close relationship between the age and severity of trauma and TMJ ankylosis.
这通常发生在训练的基础期(一般的准备阶段)。
This is usually in the Base (general preparation) period of training.
他已经到了发育期，身心都会发生很大的变化。
He has reached puberty. His mind and body both will change a lot.
这些症状只发生在黄体期。
视觉发育敏感期是弱视发生的危险期，也是逆转弱视的最佳时机。
The sensitive period of visual development is a critical period for amblyopia.
同一时期发生多场大火，绝非偶然。
此一时期，英国的社会发生了剧烈的变化，它的犯罪问题才真正凸显出来。
In this period, great movement happened, crime became a serious social problem.
发生的交易费用直接计入当期损益。
The transaction fee shall be directly recorded as profit or loss for the current period;
发生的交易费用直接计入当期损益。
The transaction fee shall be directly recorded as profit or loss for the current period;
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