9. This can _____ the worry between a couple that they don't understand each other.
A. release B. relent C. relieve D. relay

<couple>
couple 夫妇
spouse 夫妇、配偶
consort 配偶
</couple>

<relieve>
relieve 缓解、救济
</relieve>

<release>
release 释放、免除、放弃
</release>

<relent>
relent 发仁慈、慈善的
relentless 冷酷无情的
care 关心
careless 粗心的
</relent>

<relay>
relay 转播
reserve 储备、保存、内向的、沉默寡言的
introvert 内向
convert （宗教信仰）改变
extrovert 外向
vertigo 眩晕
avert 避开、转移
tedious 令人生厌的
tedium 厌烦、沉闷
divert 转向、疏散
endure 忍受、忍耐
</relay>