low-grade

形容词 low-grade:

1. of inferior quality

low-grade

adj.（形容词）
Of inferior grade or quality:
品质差的：级别低或质量差的：
例句：
low-grade merchandise.
低级商品

Reduced in degree or intensity:
低度的：在程度或强度上减少的：
例句：
a low-grade fever.
低烧