1.Relations between the USA and Turkey have soured following the purchase by Turkey of a Russian missile defense system.
sour 變壞;惡化
The disagreement over trade tariffs has soured relations between the two countries.
貿易關稅上的分歧導致兩國關系惡化 。
2.U.S. officials argue the Russian system would be incompatible with NATO systems
be incompatible with 與...不相容
His behavior has been incompatible with his role as head of state.
他的行為與他的國家領袖身份不相稱 。