repellent

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Why This Works: Talcum powder, an ingredient in both chalk and baby powder, is a natural ant repellent.
爲何如此：滑石粉是粉筆和嬰兒爽身粉的組分之一，它是天然的螞蟻排斥物。
The growth of in-flight advertising "is repellent to these passengers" — an "insult" to paying customers, he says.
飛行中廣告的增長“乘客對這些廣告是排斥的” – 是對一個付費用戶的“不尊重”，他說。
It was first used as a pesticide and later used by soldiers as a repellent in 1946. It was released for civilian usage in 1957.
第一次是作爲殺蟲劑使用的，隨後在1946年被士兵作爲敺蟲劑使用，在1957年曏民衆開放使用。

The friend suggests a certain insect repellent.
你朋友建議使用一種敺蟲劑。
I've already 課堂 - SpeakingMax英語口語達人

UPC's repellent rule over Bunia and its outlying hills, probably as many died again.
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Health officials started fogging, distributing larvicide and bug repellent, and scouting for standing water.
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Besides its effectiveness, my repellent is all-natural and will not lead to environmental or bodily harm.
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a substance used to repel something
making you feel strong disapproval and that you do not want to be involved with someone or something

If you think that something is horrible and disgusting you can say that it is repellent.
Insect repellent is a product containing chemicals that you spray into the air or on your body in order to keep insects away.