评论
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1.Many high profile companies are calling for gun control and are cutting ties with the powerful NRA lobby group.
call for 要求；提倡
These are matters which call for some statistical sophistication.
这些工作需要某些精湛的统计技巧。
2.An NRA spokesman hit back at the companies.
hit back 回击；报复
In a TV interview she hit back at her critics.
她在接受电视采访时, 反驳了那些批评者的观点.
