1.scare with 吓唬

He wanted to scare us with this.
他想用这个恐吓我们。

Fasttony why do you scare us with doomsday stuff?
你为什么用世界末日的谎言来吓唬大家呢？

2.able to 能；会

He was even able to build his own home.
他现在甚至能建一所自己的房子。

Have you been able to support yourself translating?
靠做翻译，你能维持自己的生活吗？

3.confine to 限于…之内

To confine us to our current path.
把我们限制在现在的道路上。

The treatment to pulsar signal only confine to the adding of the pulsar signal by cycles at present.
目前对脉冲星信号的处理仅局限于对脉冲星信号不同周期的迭加。

4.catch up 追上；吹起

Someday china's software will catch up with its hardware.
有一天，中国的软实力终将会赶上它的硬实力。

Some are just getting started reading the comics while others are at different issues, trying to catch up.
有些刚刚才开始读漫画，而有些人已经在别的章节了，想追上现在的进度。