Some may have just a mild case while others might be severely impaired.
有的孩子症状可能轻一些，但另一些可能很严重。
Even a mild case of dehydration can reduce your mental energy and capacity, causing your memory to become impaired.
轻度脱水也会降低思维能力，损伤记忆力。
She suffers from a mild case of nearsightedness.
她患有轻度的近视。
A mild case of dust mite allergy may cause an occasional runny nose, watery eyes and sneezing.
轻度的螨虫过敏可能只是偶尔的流鼻涕，流眼泪，打喷嚏。
A mild case of dust mite allergy may cause an occasional runny nose, watery eyes and sneezing.
轻度的螨虫过敏可能只是偶尔的流鼻涕，流眼泪，打喷嚏。
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