详细的答案是，here - documents通常用于shell脚本(脚本没有其他方式能够表明应该将脚本的哪一行看作输入)。

The real answer is that here-documents are more often used in shell scripts. (a script doesn't have any other way of signaling which lines of the script should be treated as input.)

youdao

与此同时，或多或少的私人企业也在组织课程，制作用于培训的影片和磁带并且以其他方式利用各种大学避而不用的增长机会。

In the meantime, any number of private enterprises are organizing courses, producing training films and tapes and otherwise taking advantage of growth opportunities that universities shy away from.

youdao

该协议可以用于开始会话、邀请成员参加由其他方式做广告的会话，或者利用多点控制器开始多方通话。

The protocol may be used to initiate sessions, invite members to sessions advertised by other means or initiate multiparty calls using a multipoint control unit.

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