1.speed up 加速；开快车；加紧

My ipod starts playing a faster beat, but I do not speed up.
我的ipod开始放一首快曲，但是我不加快速度。

Keep reading and you will find how these shortcuts can speed up your productivity.
读完全文，你会发现这些快捷方式是如何加快你的工作效率的。

2.fall behind 落后；下降；退后

Income growth continues to fall behind east asia and south america.
这些国家的收入增长继续落后于东亚和南美。

Make sure to keep up when moving across town with another person or a group. Don't fall behind, and don't get separated.
与别人或队伍一起过街时，注意要跟上，不要掉队，不要落单。
3.access to 有权使用

Coffee growers also needed better access to markets.
咖啡种植者也需要更好的途径进入市场。

Wto membership should at least provide greater access to foreign markets.

成为wto成员后至少能让他们更容易进入外国市场。

4.but for 要不是

But for a leading public figure to act out such xenophobia is a shock.
但一个主要公共人物做出这种行为还真是让人吃惊。

But for now chinese property owners are feeling pangs of anxiety just like americans.
但现在中国的业主正像美国人一样承受着阵痛般的焦虑。

5.in all 总共，合计；通共

In all, 24 people were found guilty.
总共有24人被判罪名成立。

In all, 37 states were electing governors.
共有37个州在进行州长改选。