1.derived from 來源于
Many English words are derived from Latin and Greek words.
許多英語詞是從拉丁詞和希臘詞派生而來的 。
2.struggle with 與……斗爭
We still have to struggle with all kinds of difficulties.
我們仍得和各種各樣的困難作斗爭 。
3.used to 曾經做某事
He's much fatter than he used to be.
他較以前胖多了 。
4.take place 發生
A total solar eclipse is due to take place some time tomorrow.
明天某個時刻會發生日全食 。
5.be able to do 能夠
If my father did it, I should be able to do it too.
如果我父親做到了,那么我也應該能做到 。