bad material

常见例句

There are plenty of good and bad learning materials on the Internet, please exercise caution when using them.
网上有好的，也有坏的学习资料，各位小心。
However, in domestic market, there are many factories use bad chemical materials to produce some poor-quality shampoo.
但是，在国内市场上，却有很多不法商家使用劣质化学原料来配制洗发水。
Rejecting online bad reading materials is the responsibility of the whole society.
抵制网上不良读物是全社会的责任。
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There was also real growth in furniture and construction materials, not bad for a country with a cooling housing market.
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There are still too many bad actors in search of these dangerous materials, and these dangerous materials are still vulnerable in too many places.
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Thursday was bad for almost everyone, but the biotech and materials sectors suffered the most.
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