vt.缩写；缩短；使简略
In writing, the title `Doctor' is abbreviated to `Dr'. 在书写时，Doctor头衔的缩写是Dr.
It is seldom acceptable to abbreviate words in formal writing. 在正式的书面语中使用缩写语通常是不能接受的。
The United States of america is commonly abbreviated to U.S.a.. 美利坚合众国常被缩略为 U.
vt.缩写；缩短；使简略
