In my mouth I have a sour, vinegar taste coming from the pit of my stomach. 在我的嘴里有从胃中返出的醋酸味。

subjunctive

a.

used in grammar to express doubt, wishes, etc. （语法中的）虚拟语气的

n.

（语法中的）虚拟语气

Please notice the subjunctive mood used in the sentence. 请注意在句子中的虚拟语气。Phrases and expressions

be/feel obliged to do sth.

if you are obliged to do sth., you have to do it because the situation, the law, a duty, etc. makes it necessary （因形势、法律、义务等关系而）非做不可，迫使

I think Valentine‘s Day is a waste of time, but I still feel obliged to send my wife a card. 我觉得情人节是在浪费时间，但我还是觉得有义务送贺卡给我妻子。

get/be serious about

if you are serious about sth., you really mean it and are not joking or pretending 对…是认真的；并非开玩笑的

When you are staying with your roommates, you cannot get too serious about privacy. 你和你的室友相处的时候，不能太计较隐私。

run into sb.

(infml.) meet sb. by chance 偶然遇见某人

You forgot all about your cousin‘s birt hday until you suddenly ran into her today. 要不是你今天偶然遇见了你表姐，你已全然忘记了她的生日。

fresh from

having just come from a particular place or experience 刚从…来的；刚有…经历的School principals should not expect teachers, fresh from college, to deal with a large group of difficult children. 学校的校长不应该指望刚从大学毕业的老师来应付一大群难以对付的孩子。

I‘ve returned to the office, fresh from New York. 我刚从纽约回来，现已回到了办公室。distinguish between

recognize and understand the difference between two or more things or people 区分；辨