- 相关例句
Plants provide many chemicals that can be useful to humans, especially for drugs and insecticides.
植物能为人类提供有用的化学物质, 特别是药物和杀虫剂.
辞典例句
It may still be useful to press the point home by working out a particular illustration.
通过一种特殊的说明来表明这点也许仍是有用的.
辞典例句
Before going further, it may be useful to get some perspective on the national debt.
在作进一步讨论前, 先观察一下国内负债情况可能是有用的.
辞典例句
It may be valuable for flying shears in design and theoretical analysis.
这无论是对于新飞剪机的设计,还是对现有飞剪机的分析计算,都具有实际意义.
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