1. 履行承诺 make good on one's word

2. 信守承诺 keep one's promise

3. 步步紧逼 leave sb no escaping 

4. 爱慕虚荣、恬不知耻 vain and shameless

5. 事业上升期 on the fast track to promotion/climb up the corperate ladder

6. 成为所有人的笑柄 become everyone's laughing stock

7. 在行业内没有立足之地 can't find one's footing in industry

8. 得理不饶人 ( )

9. 敢说不敢做 all bark no bite

10. 论资排辈 based on seniority