required to
- 网络被要求去;不得不
 
required torequired to
被要求去
TPO19: THE ROMAN ARMY'... ... ) Encouraged to( 被鼓励去…) ) Required to( 被要求去….) ... 
                不得不
英语常用短语在线查询 - 香儿的日志 - 网易博客 ... 1.required to 不得不 score;acquire;gain;win 获胜得分;获得;赢得 ... 
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        Other required to be in the industrial and commercial administration authorities for registration of the name of the organization.
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