重點講解:
1. at the center of 中心;核心;
At the center of this system is your heart.
這個系統的中心是心臟。
2. be diagnosed with 診斷;確診;
Last year, she was diagnosed with lung cancer.
去年她被診斷出患了肺癌。
3. pass away 去世;逝世;謝世;
His father passed away a long time ago.
他父親早就故去了。
4. do one's utmost to do sth. 極度;極限;最大可能;
Now that you put your hand to the work, you should do your utmost to finish it.
既然你已經著手這項工作了,那就應該盡力完成它。
n. 增加,附加物,加法