Str.
abbr. 链球菌属(streptococcus);汽船(steamer)
例句
Consider two threads with access to the String STR.
考虑两个线程访问String str。
After you invoke that method on the String STR (str.freeze, STR cannot be modified).
对String str调用该方法(str . freeze)之后,str将不能被修改。
Str is basically telling us how we want to have it printed out.
Str 基本上是在告诉我们,我们想怎样把它打印出来了。