It's about this high.
大约有这么高。
There have been some problems but basically it's a good system.
虽然出现过一些问题，但这基本上仍不失为一个好系统。
It's been quite a day, one way and another.
从几方面看，这是不寻常的一天。
It's good to meet people from different parts of the country.
结识来自这个国家不同地区的.人是有益的。
It's only human to want the best for your children.
为自己的孩子谋求最好的条件是人之常情。