的缩写的英文：
oughtn't

Jan is the abbreviation for January.
Jan是January的缩写词。

UN is short for the United Nations.
UN是the United Nations(联合国)的缩写。

Master of Science if often abbreviated to MS.
理科硕士常常缩写为MS.

Wi-Fi is short for wireless fidelity.
Wi-Fi是wireless fidelity的缩写。

UFO is abbreviated from unidentified flying object
"UFO"是"unidentified flying object"(不明飞行物体)的缩写。

GATF: Abbreviation for Graphic Arts Technical Foundation,Pittsburg, U.S.A.
印刷技术基金会:英文是“印刷技术基金会”的缩写，它在美国的匹兹堡市。

The most popular method to do that now is PCM. PCM stands for pulse code modulation.
现在最常用的方法是PCM，这是英文脉冲编码调制的缩写。

She owns a silver Porsche car with her initials JB on the side.
她拥有一辆车身有她姓名缩写JB的银色保时捷跑车。

AARRR means acquisition, activation, retention, revenue and refer.
AARRR缩写的全称指的是获取用户，提高活跃度，提高留存率，获取收入和自传播。

A drug,C17H25N,used in veterinary medicine as an anesthetic and illegally as a hallucinogen;PCP.
苯环己哌啶一种药，C17H25N，在兽医中用作麻醉剂，非法使用时可作为幻觉剂;PCP(这种药缩写形式)