1、black out

晕厥；暂时昏迷

I could feel blood draining from my face. I wondered whether I was about to black out.

我能感觉到血从我脸上流下来。我想我是不是要晕过去了。

Samadov said that he felt so ill that he blacked out.

萨马多夫说他感觉很不舒服，然后就晕了过去。

对…实行灯火管制；使一片漆黑

Large parts of the capital were blacked out after electricity pylons were blown up.

输电塔爆炸以后，首都大片地区陷入一片漆黑。

涂黑，盖住，涂掉（文字等）

U.S. government specialists went through each page, blacking out any information a foreign intelligence expert could use.

美国政府的专家们审查了每一页内容，涂掉了外国情报专家可能利用的任何信息。

Some Welsh activists have started blacking out English language road signs.

一些威尔士激进分子已经开始涂盖英语路标。

2、open up

（使）（地方、经济、兴趣领域等）开放

As the market opens up, I think people are going to be able to spend more money on consumer goods.

随着市场的放开，我认为人们将能够增加用于消费品的支出。

He said he wanted to see how Albania was opening up to the world.

他说他想看看阿尔巴尼亚是如何对外开放的。

（使）（机会、可能性等）出现；（使）产生

It was also felt that the collapse of the system opened up new possibilities.

人们也认为这一制度的崩溃带来了各种新的可能性。

New opportunities are opening up for investors who want a more direct stake in overseas companies.

希望更加直接地参股海外公司的投资者获得了新的机会。

开…的门

Three armed men were waiting when the postmaster and his wife arrived to open up the shop.

当邮政局长和妻子到邮局开门营业时，3名持械男子正等着他们。

Open up, or I break in!

把门打开，不然我要砸门了！