B
生物医药大词典
by MedSci
菜单
词典
分类
百科
诗词
背单词
英文名
DeepEvidence ↗
确认登录状态…
例句 /
A boy's voice cracks (ie becomes deeper) at puberty.
A boy's voice cracks (ie becomes deeper) at puberty.
男孩在青春期嗓音改变(声音变粗).