makeclearbeforehand;有言在先
strivetobethefirstandfeartolagbehind;争先恐后
ancestorforefather
mylatefather先父
Whydidn'tyoutellmebefore?你先怎么不告诉我?
XianZhen先轸
〈动〉
〈名〉
〈形〉
〈副〉