5. Cash cow
5.摇钱树
a dependable source of income; a product or service that makes money
靠谱的收入来源；赚钱的商品或服务
Our companys cash cow is the sales department, which makes enough income to finance the developers.
销售部是大家企业的摇钱树，向开发部提供了很多资助。
The publisher saw the new bestseller as a cash cow.
出版商把最新的畅销作品视为摇钱树。
6. Eager beaver1
6.干事用心的人
an enthusiastic hard worker; someone very excited to start a task
做事勤奋的人；做事用心的人
The new secretary is an eager beaver. Although she comes to work at seven every day, shes the last to leave in the evening.
新来的秘书做事勤奋。虽然天天七点就来上班，但一直最晚下班的人。
Dont be an eager beaver; we have plenty of time to do this job.
别那样卖命，大家有些是时间。
7. Road hog2
7.鲁莽的驾驶员
a inconsiderate driver, someone who drives carelessly and selfishly
不考虑别人安危的司机，开车粗心，十分自私
Sorry that were so slow, but there is no way to overtake that road hog in front of us.
抱歉速度太慢，但大家没办法超越前面那个乱抢路的司机。
A road hog nearly ran me over at the crossing as he failed to sTOP at the sign.
在十字路口，一位鲁莽的司机没能准时看到标识停车，差点撞到我。
8. Black sheep
8.害群之马
an undesirable3 member of a group, a disliked person, somebody who causes shame or embarrassment4 due to deviation5
群体中不受青睐之人，给群体抹黑、风险集体的人
Dont be surprised that he doesnt want to take over fathers business, hes always been the black sheep of the family.
他本来就不计划继承父业，别惊讶，他一直是家的败家子。
They called me the black sheep as I didnt want to go to the pub and play billiards6 with them.
就由于我不想去夜店跟他们打台球，他们就说我不合群。
