teething
n. 出牙，生牙
v. 生牙，出乳牙（teethe 的现在分词）
例句
Teething can be painful and make your baby irritable.
出牙可能会很痛苦，会使婴儿烦躁易怒。
《柯林斯英汉双解大词典》
Babies often get red cheeks when they're teething.
婴儿出牙时脸蛋常常是红的。
The conversation has shifted from diapers and drool to teething and first words the babies said.
交谈的内容已经从尿布和口水转移到长牙和宝宝说的第一个词这些事情上来。
