But this time, some Senate Republicans may even block a vote on this issue.

但这一次，部分共和党参议员可能会阻扰对这项议题的投票。

But they tend to vote as a block, and can sway the outcome of elections.

但他们的投票却可能左右选举的结果。

There are way for US senator to block or delay a vote.

这是参议员阻止或推迟投票的一种方法。

Any of these countries can block a proposal by casting a negative vote, even if the other four permanent and all non-permanent members vote in favour.

任何一个常任理事国家投反对票，就能阻止提案通过，即使其余4个常任理事国和所有非常任理事国都投赞成票也不行。

He used his casting vote to block the motion.

他用他的投票反对动议的通过。