“knockdown”可以造什么句,knockdown造句
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Health insecticide coating type WS-I was shown to have very strong knockdown and cidal effect on mosquitoes, flies and cockroachs.
If you've seen video of a knockdown, you know it is clearly frightening and stressful.
Shareen exhibits that knockdown goodwill that you find in many Americans – in spite of having little time on her hands, she volunteers on Saturdays for the Lost Pets charity.