1、subject
主题;题目;话题;题材;问题
It was I who first raised the subject of plastic surgery.
是我第一个提到整形手术这个话题的。
the president's own views on the subject.
总统在此问题上的个人观点
(批评、学习、调查的)对象
Over the past few years, some of the positions Mr. Meredith has adopted have made him the subject of criticism.
在过去的几年里，梅雷迪思先生所采取的某些立场使他成为了批评的对象。
He's now the subject of an official inquiry.
他现在是官方调查的对象。
(知识、研究)领域;(尤指)学科，科目，课程
Surprisingly, mathematics was voted their favourite subject.
令人惊讶的是，数学课被选为他们最喜欢的科目。
a tutor in maths and science subjects.
辅导数学和理科课程的家教
2、explain
解释;说明
Not every judge, however, has the ability to explain the law in simple terms.
然而，不是每个法官都能用简单的语言来解释法律。
Don't sign anything until your solicitor has explained the contract to you.
在律师向你解释清楚合同之前，不要签署任何东西。
解释;辩解;说明…的理由
'Let me explain, sir.' 'Don't tell me about it. I don't want to know.'...
“您听我解释，先生。”“别跟我说，我不想知道。”
Before she ran away, she left a note explaining her actions
逃跑前，她留下一张便条解释原委。