low-grade的意思
形容词低劣的，低等的; 劣等; 下等; 下品
形容词
1. My son has had a low-grade fever for several days. 我儿子已发了几天的低烧。
2. The jacket is made of some low-grade material. 这件夹克是用某种劣等料子做的。
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adj
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1. of inferior quality