an extremely important matter 極爲重要的事情

Abortion is always a controversial issue. 堕胎總是一個有爭議的問題。

Public education was one of the biggest issues in the election campaign. 公共教育是競選運動中最重要的議題之一。

The subject of cloning raises complex ethical issues. 克隆這個話題引起了複雜的倫理道德問題。

He's never mentioned the subject of money. 他從未提到過錢的問題。

The subject of our debate today will be the environment. 我們今天辯論的主題是環境問題。

It was Carol who brought up the subject of sports facilities. 是卡羅爾提起的體育設施這個話題。

Somehow we got onto the subject of education. 不知怎麽的，我們談論起了教育這個話題。

Look, I don't want to talk about it, so can we drop the subject? 聽着，我不想談論這件事，我們别談這個話題好嗎？

We're getting off the subject here – let's get back to your book. 這個話題我們就到此爲止，我們再回到你的書上吧。

Can we change the subject, please? 我們能換個話題嗎？

Musical instruments are a recurrent theme in his still life paintings. 樂器是他靜物畫中反複出現的主題。

Good child care was the central theme of the conference. 良好的兒童保育是本次大會的中心議題。

She tried to think of another topic of conversation. 她想再找個話題。

The topic for discussion today is ‘The Health of the Nation'. 今天討論的主題是“國民健康”。

His report did not address the question of air warfare. 他的報告沒有談到空戰問題。

the vexed question of the national minimum wage 全國最低工資標準這個難題

We'll be covering a lot of new ground in today's lecture. 今天的講座我們會涉及很多新的領域。

There's no point in going over the same ground twice. 同一個話題沒有必要討論兩次。