chewing
[t'ʃu:ɪŋ]
v.
咀嚼，咬( chew的现在分词 );
（因为紧张等）咬住，不停地啃，（为尝味道）不停地咀嚼;
例句:
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The sound of her own chewing and swallowing were explosively loud.
她自己嚼咽食物的声音非常大。
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Daniel leaned back on the sofa, still chewing on his apple.
丹尼尔倚在沙发上，嘴里还在嚼着苹果。
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In his mouth was a wad of chewing tobacco.
来自NEWYORKER
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I've tried everything from herbal cigarettes to chewing gum.
中草药香烟、口香糖之类的我统统都试过了。
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They have chewing mouthparts, and undergo complete metamorphosis.
来自BBC
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Prepare meals that don't need too much chewing.
来自BBC