Usage priority
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
咧嘴笑,露出牙齿。
grinned — past of grin
先理解核心含义，再看它在真实句子里的用法。
咧嘴笑,露出牙齿。；以咧嘴笑表达。；做出微笑或冷笑等特定面部表情时咧嘴笑。；露齿而笑
To smile, parting the lips so as to show the teeth.
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咧嘴笑,露出牙齿。
To smile, parting the lips so as to show the teeth.
以咧嘴笑表达。
To express by grinning.
做出微笑或冷笑等特定面部表情时咧嘴笑。
To grin as part of producing a particular facial expression, such as a smile or sneer.
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Use grinned naturally, then get feedback on meaning, tone, grammar, and phrasing.
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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.