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- The study gathered preliminary information about the levels of trace toxic chemicals in the marine environment and assessed the risks they could pose to the ecosystem and to human health. 这项研究蒐集海洋环境中有关痕量有毒化学物质的资料,初步评估它们对生态系统及人体健康所构成的风险。
- The factory had been sending out toxic fumes. 这家工厂一直在排放有毒的废气。
- Trace toxic organic contaminants in influent, secondary and final effluents of a sewage treatment plant 有机微污染物在污水处理过程中的变化研究
- I can't trace that letter you sent me. 我找不到你寄给我的那封信。
- He spoke without a trace of emotion. 他说话时毫不动感情。
- Did the police find any trace of the murderer? 警方找到凶手的行踪了吗？
- They failed to find any trace of the runaways. 他们未能找到逃跑者的任何踪迹。
- There was barely a trace of salt in the soup. 汤里简直一点盐也没有放。
- Beware how you handle the toxic chemical. 小心处理有毒的化学药品。
- The post office tried to trace the lost letter. 邮局设法查出那封丢失的信。
- The kids are learning to trace the letter. 孩子们学描字母。
- He always spoke with a trace of sarcasm. 他说话总带着一丝讽刺。
- A toxic chemical or other substance. 有毒的化学品或其它物质
- The powerhouse was trace out accurately later on a large scale map. 后来发电站被精确地描画在大比例地图上。
- A faint or fleeting indication; a trace. 模糊的暗示模糊的或一闪即逝的暗示; 迹象
- The degree to which a substance is toxic. 毒效一种物质毒性所达到的程度
- The country woke from her trace of two hundred years. 这个国家在沉睡了200年之后觉醒过来了。
- The rain flushed away the trace left by the criminals. 大雨把犯罪分子遗留的痕迹冲刷掉了。
- A slight trace of color; a tinge. 色调轻微的一抹颜色; 色调
- The family can trace its history to the 17th century. 这个家族的历史可以追溯到十七世纪。
