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Simple laryngitis usually occurs with infection s such as the common cold.

简单的喉炎通常由像普通感冒这类感染引起。

Simple laryngitis usually occurs with infections such as the common cold .

简单的喉炎通常由像普通感冒这类感染引起。

Because laryngitis is a viral infection and often occurs at the same time as a cold or other infection, there is no obvious way of prevention.

因为喉炎是一种病毒感染，而且往往发生在同一时间，作为一个冷战或其他感染，有没有明显的方式预防。

Lassa Fever. Lassa fever is a severe, often fatal, hemorrhagic fever that occurs in rural areas of West Africa, and is caused by a virus transmitted from infected rodents to man.

拉沙热 拉沙热是一种严重的，往往致命的出血热，多发生在非洲西部的乡村地区，是由被感染的啮齿类动物将病毒传染给人引起的。

Lassa Fever.''' Lassa fever is a severe, often fatal, hemorrhagic fever that occurs in rural areas of West Africa, and is caused by a virus transmitted from infected rodents to man.

拉沙热'''拉沙热是一种严重的，往往致命的出血热，多发生在非洲西部的乡村，是由被感染的啮齿类动物将病毒传染给人引起的。

The onset of SAD usually occurs in the late fall and early winter, as the daylight hours grow shorter.

随着日照时间变短，SAD通常会发生在深秋入冬之际。

Unless leaching occurs, nitrogen should not be applied after lay-by.

除非发生淋洗，氮肥不应在烟草田间作业结束后再施用。

Leakiness is a common problem existing in hydraulic machinery, which causes bad influence for the normal usage of the machinery. By analysis to the main parts where leakiness occurs in hydraulic system and their causes, measures to Control the leakiness are put forward.

泄漏是液压机械普遍存在的故障现象，给机械的正常使用造成不良影响，通过分析液压系统产生泄漏的主要部位及原因，提出了控制液压系统泄漏的措施。

This is more of an issue in the far east, where the leap second occurs in the middle of the day, and when one is inserted at the end of June and hence often on a working day.

这在远东地区更成问题，在那些地区，闰秒发生在一天的中间时段。因此，当在6月份实行闰秒的时候，大多都是在工作日进行。

For the Seattle Public Library, the intersection of identity and legibility occurs in the realm of the virtual first.

在西雅图公共图书馆，交叉的特性以及容易被发现的在各区域的虚的平台上。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。