one— first;
two— second;
three— third;
four-fourth;
five— fifth;
six— sixth;
seven— seventh;
eight—eighth;
nine—ninth;
ten— tenth
相关介绍
This is one of the most commonly used methods.
这是最常采用的方法之一。
There's only one sure way to do it.
做这件事只有一个保险的办法。
The first stage in research is data collection.
研究工作的第一步是收集资料。


