used as a friendly or encouraging preface to a request行行好，作个好人
英语四级真题
A New Jersey black bear that walks upright on its two back legs and has become a social media darling has re- emerged and has been captured on video months after its last sighting.
2017年12月四级真题（第一套）听力 Section A
柯林斯高阶英汉双解学习词典释义
N-VOC
(用作昵称）亲爱的，宝贝儿
You call someone darling if you love them or like them very much.