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 /
I am an optimist by choice as much as by nature.
I am an optimist by choice as much as by nature.
我是一个天生的乐观主义者。