Even innocuous substances can sometimes register a positive result in a drug test.
即使无害的物质在药物测试中有时也会呈阳性。
会
对的义词重要的, 无足轻重的, 值得考虑的;值得注意的;愉快的;重要的，琐碎的;Even innocuous substances can sometimes register a positive result in a drug test.
即使无害的物质在药物测试中有时也会呈阳性。
The question appeared innocuous enough, but I still did not trust her.
个问题看来没什么恶意，可我仍然
相信
。
The liquid looked fairly innocuous.
液体看来没什么危险。
And the materials are transparent， achromatic， smellless， and innocuous.They won't affect the color and the vein of tiles.
而且材料透明、无色、无臭、无毒，同时也影响[抛光砖的花色及纹理效果。
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