twin-head auger
基本释义
双头螺钻机
实用场景例句
日常对话
To treble his income, he started a side business selling handmade crafts.
为了将收入提高三倍，他开始做手工制品的副业。
科学实验
The scientist needed to treble the concentration of the solution to observe the reaction.
科学家需要将溶液的浓度提高三倍才能观察到反应。
音乐学习
The choir practiced singing treble notes to achieve perfect harmony.
合唱团练习演唱高音音符以实现完美的和谐。
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