frustrate
英 [frʌ'streɪt; 'frʌs-]
美['frʌstret]
	    - vt. 挫败;阻挠;使感到灰心
 - vi. 失败;受挫
 - adj. 挫败的;无益的
 
英英释意
- 1. hinder or prevent (the efforts, plans, or desires) of;
 - "What ultimately frustrated every challenger was Ruth's amazing September surge"
 - "foil your opponent"
 
- 2. treat cruelly;
 - "The children tormented the stuttering teacher"