bìng dǔ
be critically ill
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national day,
national debt,
national flag,
National Guard,
national holiday,
national income,
National Insurance,
National Labor Relations Board,
national language,
national monument,
相似单词
病毒科,
病毒室,
病毒性疾病,
病毒性心肌炎,
病毒自体移转,
病笃,
病笃的,
病房,
病房费,
病房用的,