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Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
在水面或类似介质上轻轻上下移动
bobs — third person singular of bob
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在水面或类似介质上轻轻上下移动；将头发剪成波波头；使(某物)像在水中上下浮动。；通过剪切来缩短；修剪。；行屈膝礼
To move gently and vertically, in either a single motion or repeatedly up and down, at or near the surface of a body of water, or similar medium.
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在水面或类似介质上轻轻上下移动
To move gently and vertically, in either a single motion or repeatedly up and down, at or near the surface of a body of water, or similar medium.
将头发剪成波波头
To cut (hair) into a bob haircut.
使(某物)像在水中上下浮动。
To move (something) as though it were bobbing in water.
通过剪切来缩短；修剪。
To shorten by cutting; to dock; to crop.
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Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.