In this sentence, the word BIG is in capitals.

本句BIG词用的是大写字母。

Begin every sentence with a capital.

每个句子开始要用大写字母。

The use of lowercase letters for capital letters was one of the idiosyncrasies of the poet e.e. cummings.

用小写字母代替大写字母是诗人e.e.卡明斯特有的风格。

If you capitalised a word, you use a capital letter at the beginning or for the whole of it.

你把个单词大写，可以指个字母大写，也可以指整个词都大写。

On the television screen we see the announcer holding up a cereal box with the name WAKE---UPS in big letters.

"在电视屏幕上,我们看到,主持人手拿着盒麦片,盒子上用大写字母写着'WAKE-UPS(清醒)'。"

In English, all capital words are used only when you are very angary, almost equal to shouting or cursing. This way I suggest you never use these capitals again.

在英语，所有大写字母都是当你特别生气时才用的，几乎相当于大喊大叫或者诅咒的时候。我建议你定不要再用这些大写字母了！