1、element

成分;組成部分

The exchange of prisoners of war was one of the key elements of the UN's peace plan.

交換戰(zhàn)俘是聯(lián)合國和平計(jì)劃的一個重要部分。

要素；基本部分

Fitness has now become an important element in our lives.

現(xiàn)在健康已經(jīng)成為我們生活中的一個要素。

（社會或組織內(nèi)部具有相同目標(biāo)、信仰或習(xí)慣的）一群人，一組人，分子

criminal elements within the security forces.

安保部隊(duì)中的犯罪分子

the hooligan element.

流氓團(tuán)伙

2、concentrate

全神貫注;集中（心思）

It was up to him to concentrate on his studies and make something of himself.

是否能專心學(xué)習(xí)并取得一定成就要靠他自己。

Water companies should concentrate on reducing waste instead of building new reservoirs.

自來水公司應(yīng)該集中精力減少水浪費(fèi)，而不是修建新水庫。

使集中;使匯集

Italy's industrial districts are concentrated in its north-central and north-eastern regions.

意大利的工業(yè)區(qū)集中在該國中北部和東北部地區(qū)。

Most development has been concentrated in and around cities.

土地開發(fā)主要集中在城市及周邊地區(qū)。