trillion
英 ['trɪljən]
美['trɪljən]
	    - n. [数] 万亿
 - adj. 万亿的
 - num. [数] 万亿
 
英英释意
- 1. the number that is represented as a one followed by 18 zeros;
 - "in England they call a quintillion a trillion"
 
- 2. the number that is represented as a one followed by 12 zeros;
 - "in England they call a trillion a billion"