8.  capacity n. 承受量

Are you clear about the capacity of the cinema?

做某事的能力

have a capacity for doing/ to dosth.

成功地做到了 

We have ability to finish the work in two days.

capability内在的潜力

have capability to do/of doing

Any chile has capability of learning a foreign launguge well.

Any chile has capability to learn a foreign launguge well.

faculty 侧重于“主观的能力”

the faculty of seeing

competence 胜任工作的能力、资格

I have competence for the job.

9.  elegant adj. 优美别致的

The lady is elegant.

graceful: 强调一个人的体型

elegant:  还表示人的举止很得体，大方

delicate: 精致的