calibre
(US caliber), / ˈkælɪbə(r); `kæləbɚ/ n
1 [C] diameter of the inside of a tube or gun-barrel （管子或枪炮筒的）口径.
2 [U] quality; ability; distinction 质量; 能力; 特性
His work is of the highest calibre. 他的工作质量最高.
The firm needs more people of your calibre. 公司需要多找些有你这种才干的人.