n.钢制,冷酷,顽固;
英文例句/中文翻译:
go to the library on weekends? you are a certifiable bookworm.
周末还去图书馆?你真是一个无可救药的书呆子。
me, ask him out? you're certifiable!
我,邀请他?你疯了!
the man was absolutely certifiable.
他肯定是个精神病。