英语语法分析

By default, the new created is joinable.

默认情况下，新创建的线程是可接合的。

Joinable threads should be joined during programming.

在编程过程中应当联接可接合线程。

It creates new joinable threads ceaselessly until failure happens.

它不断创建新的可接合线程，直至有故障发生。