Rescue work and an investigation into the cause of the flood are underway.
目前，救援工作和事故原因调查正在进行中。
But these treatments don't work for everyone and often cause side effects.
但是，这些疗法并不能对所有人起作用，而且往往会产生副作用。
However, the viaduct system can cause environment vibration and interfere with peoples work and study.
城市高架轨道系统会引起环境振动，影响人们的工作和学习。
These debilitating headaches cause lost time from family, social activities, and work.
这些衰弱头痛造成损失的时间从家庭，社会活动和工作。
For example, I know first I must analysis the problem and work out its major cause.
举个例子，我知道我最先要做的是分析问题，找出原因。
Further toxicological work has to be done to establish cause and effect.
需要进行进一步的毒理学研究来确定影响与起因。
Further toxicological work has to be done to establish cause and effect.
需要进行进一步的毒理学研究来确定影响与起因。
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