https://online2.tingclass.net/lesson/shi0529/0008/8124/812_813_danci.mp3
https://image.tingclass.net/statics/js/2012
[ti:]
[ar:]
[al:]
[by:听力课堂~www.tingclass.net]
[00:01]component (组)成(部)分,部件
[00:16]ingredient 组成部分,成分
[00:30]fundamental 基础的,基本的
[00:44]essential 必要的,必不可少的
[00:57]indicate 指出,指示
[01:10]imply 意指,含…意思
[01:22]denote 表示,意味着
[01:32]