2021 质量

zhì liàng quality; (physics) mass; CL:個|个[ge4]

审核

shěn hé to audit; to investigate thoroughly

shěn hé see 審核|审核[shěn hé]

员

yuán person; employee; member

考试

kǎo shì to take an exam; exam; CL:次[ci4]

时间

shí jiān time; period; CL:段[duan4]

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