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 /
Bad habits are very difficult to break off once they are formed.
Bad habits are very difficult to break off once they are formed.
坏习惯一旦形成就很难改掉.