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
中医中药
DeepEvidence ↗
确认登录状态…
例句 /
The twins hadn't seen a hovercraft before, had they?
The twins hadn't seen a hovercraft before, had they?
这对双胞胎以前没见过气垫船,是吗?