Cold symptoms such as stuffy nose, runny nose and scratchy throat typically develop gradually, and adults and teens often do not get a fever.
感冒症状,如鼻塞、流鼻涕和喉咙发痒,通常是逐渐出现的,成年人和青少年通常不发烧。
The work is physically exhausting, mentally numbing and often performed in filthy and unbearably hot or cold conditions.
这些工作往往使人身心疲惫,而且往往在肮脏并且令人难以忍受的酷热活着严寒的条件下工作。
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