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 few cases of influenza cropped out every now and then.
A few cases of influenza cropped out every now and then.
不时出现一些流行性感冒的病例。