1.roll back 降低
One provision of the law was to roll back taxes to the 1975 level.
該法律的規定之一便是將稅收降低到1975年的水平[uCmN^,7o-fd&dja*!。

2.national and international 國內外
The company had very strong marketing ability on a national and international basis in the carpet field.
公司在國內外均有很強的氈毯行銷能力A8Ij|3Fo];rr。

3.bring home to sb. sth. 讓某人明白
Copernicus said, "We should bring home to them the earth is round. "
哥白尼說，“我們應該讓他們明白，地球是圓的jgJnY1fBsKZ。”

4.barely begin to 只稍微……
Words barely begin to describe my gratitude toward our alumni and friends who understand the need for supporting students affected by cancer.
對于理解我們有必要幫助那些受癌癥影響的同學這點的校友和朋友，我對他們的感激之情難以用言語表達FVcNz[NbAuQoNCpY。