by-business的用法和樣例：
例句
用作名詞 (n.)
- Mr Rigsby was a night-watch man, and his wife eked out his wages by breeding budgerigars.
里斯比先生是個夜間守門人，他的太太以飼養小鸚鵡為副業補助家庭的收入。 - It's just not feasible to manage the business on a part-time basis.
兼職管理業務是搞不好的。 - Bob augments his income by doing window cleaning on the side.
鮑勃以擦窗戶為兼職來增加其收入。
