1.financial market 金融市場

There are problems on the financial market that we were not aware of before.
金融市場上存在以前我們沒有意識到的一些問題。

Just like the human body, the financial market is interconnected, so when one of its vital organs fail-a big bank-the entire system can collapse.
像人的身體一樣，金融市場是相互貫通的，因此當其中一個重要器官失靈—一家大銀行—整個系統(tǒng)都面臨崩潰。

2.use to 過去常常

It is no use to sermon me.
對我嘮叨可沒用。

What tool should I use to analyze it?
我應該使用什么工具來分析它？

3.opt to 被選擇;可選擇

Or, you can opt to lick up her back.
或者你可以選擇去舔她的香背。

Mobile users can opt to retrieve only some or all archived documents.
移動用戶可以選擇檢索部分或所有的存檔文檔。

4.keen to 熱衷于

I hear this one from very sophisticated people, keen to show their respect for the scale and scope of China.
我從見多識廣的人那兒聽到這樣的話，他們很熱衷于展示自己對中國地大物博的尊敬。