This is the one major drawback of the new system.
这是新系统的'一大弊端。
There is, in addition, one further point to make.
此外，还有一点要说。
This is one of the most commonly used methods.
这是最常采用的方法之一。
It's been quite a day, one way and another.
从几方面看，这是不寻常的一天。
There were more than 50 people on stage in one scene.
有一场戏中舞台上的人有50多个。