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 curricular content's arrangement must be connected with practice, plan it as a whole and develop gradually.
课程内容安排要联系实际，统筹规划，循序渐进。
The curricular content's arrangement must be connected with practice, plan it as a whole and develop gradually.
课程内容安排要联系实际，统筹规划，循序渐进。
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