https://online2.tingclass.net/lesson/shi0529/10000/10243/121.mp3
https://image.tingclass.net/statics/js/2012
本期內容：
A small leak will sink a great ship
千里之堤潰于蟻穴
首先，我們來學習兩個單詞
leak L-E-A-K 漏洞
sink S-I-N-K 使船沉沒
a small leak will sink a great ship
一個小小的漏洞，足以讓一艘大船沉沒，正如千里之堤潰于蟻穴
