1、commercial

商业的;贸易的

Docklands in its heyday was a major centre of industrial and commercial activity.

港区在其最繁荣的时期曾是主要的工商业活动中心。

Attacks were reported on police, vehicles and commercial premises.

据报道，警察、车辆和商业经营场所均遭到袭击。

(组织、活动)营利的，商业化的，偏重利润的

British Rail has indeed become more commercial over the past decade.

过去10年来，英国铁路确实变得更加商业化了。

Conservationists in Chile are concerned over the effect of commercial exploitation of forests.

对森林的商业开发所带来的影响让智利的自然资源保护者们感到忧心忡忡。

(车辆)商用的

Commercial vehicles, coaches and lorries are required by law to be fitted with tachographs.

法律规定商用车辆、长途汽车和卡车要安装转速计。

the fastest crossing of the Atlantic by a commercial passenger vessel.

商用客船最快的一次横渡大西洋

2、declare

宣称，声称（…为事实）；表明(态度、意图等)

Speaking outside Ten Downing Street, she declared that she would fight on.

她在英国首相官邸外发表讲话时宣称她将继续斗争下去。

'I'm absolutely thrilled to have done what I've done,' he declared.

他宣称道：“我为自己的所作所为感到兴奋不已。”

宣布;宣告

The government is ready to declare a permanent ceasefire.

政府准备宣布永久性停火。

His lawyers are confident that the judges will declare Mr Stevens innocent.

史蒂文斯先生的律师们确信法官将宣告他无罪。

申报(纳税品、收入等)

Your income must be declared on this form.

必须在这张表格上申报你的收入。

She had nothing to declare, and was starting to go through the 'Green' channel when she was stopped.

她没有什么要申报的，便开始进入绿色通道，结果就在这时被拦住了。