https://online2.tingclass.net/lesson/shi0529/0009/9907/209.mp3
https://image.tingclass.net/statics/js/2012
講解文本：
play it by ear 見機(jī)行事，隨機(jī)應(yīng)變
Let's play it by ear when we get there.
到了那兒，我們?cè)僖姍C(jī)行事。
We should have a plan for tomorrow, or we will have to play it by ear.
我們應(yīng)該準(zhǔn)備一個(gè)計(jì)劃，不然只能走一步算一步了。
瘋狂練習(xí)吧!
