not a native letter in Old English; in Anglo-French words it represents the "ts" sound (as in Anglo-French fiz, from Latin filius, modern Fitz); from late 13c. it began to be used for the voiced "s" sound and had fully taken that role by 1400. For letter name, see zed.
Series of zs to represent a buzzing sound first attested 1852; zees "spell of sleep, a nap" is slang first recorded 1963, American English student slang.
权威例句
1. The possible permutations of x, y and z are xyz, xzy, yxz, yzx, zxy and zyx.
x、y和z的可能的组合方式为xyz、xzy、yxz、yzx、zxy和zyx。
2. The last letter of the alphabet is Z.
字母表的最后一个字母是Z.
3. An A to Z of careers gives helpful information about courses.
按字母顺序排列的职业大全提供了有助于课程选择的信息。
4. Using astigmatic method to extract information of light source in z axis.
用散光的方法来提取光源在Z轴上的位置。
5. I can't remember how to write a capital Z in cursive.