capability 
英 [ˌkeɪpəˈbɪlɪtɪ]  美 [ˌkeɪpəˈbɪləti] 
n. 才能，能力；容量；性能

例句：
People experience differences in physical and mental capability depending on the time of day. 

人们会感受到在一天的不同时段，体力和脑力也会有所不同。

Scientists were developing the capability to forecast ocean conditions in the same way as meteorologists forecast weather. 

科学家们正在设法预测海洋状况，就像气象学家预测天气那样。

Some jobs are beyond their capabilities. 

有些工作超出了他们的能力所及。

If I feel it is within my capabilities, I will proceed. 

如果我觉得那是我力所能及的，那我就接着做。