cheerful
英 ['tʃɪəfʊl; -f(ə)l]
美['tʃɪrfl]
	    - adj. 快乐的;愉快的;高兴的
 
英英释意
- 1. being full of or promoting cheer; having or showing good spirits;
 - "her cheerful nature"
 - "a cheerful greeting"
 - "a cheerful room"
 - "as cheerful as anyone confined to a hospital bed could be"
 
- 2. pleasantly (even unrealistically) optimistic