break the deadlock

打破僵局

A compromise may break the deadlock between the union and management.
妥协也许能打破劳资双方所处的僵局。

a scientific breakthrough

科学突破

The ASR is a monumental scientific breakthrough that could banish forever the threat of some forms of blindness.
人造硅视网膜是一项里程碑式的科学突破，有可能永远消除一些失明病的威胁。

an unexpected outcome

出乎意料的结果

sign/ratify an accord/deal/treaty/pact/agreement

签署协议

diplomatically isolated country

在外交上被孤立的国家