insecticides的用法和样例：

例句

Farm workers frequently come in contact with these insecticides.农场工人常常接触这些杀虫剂。
They observed how the crops reacted to these insecticides.他们观察了庄稼对这些杀虫剂有什么反应。

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The dengue virus is spread through the bite of an infected female Aedes egypti mosquito. The disease causes flu-like symptoms, including high fever, muscle aches and sometimes death. Each year, the disease strikes between 50 and 100 million people li

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学英语单词

accelerated depreciation

acetrizoate sodium

acoustic control and telemetry system

aerophotogrammetric(al)