Three-tier
[医]三层
🧩 词语组成解析
three
[θri]
num. 三;三个;第三（章，页等）;
n. 三岁;三个人[东西];三，三个;
adj. 三的;三个的;
tier
[tiə]
n. 等级;阶梯座位等的一排，一行，一层;包扎工;
vt. 层层排列，使层叠;
vi. 成递升排列，层叠;
🗣️ 情景例句
I've got it. This one's on me.
我都付了。这一顿我请客。
That's easy for you to say.
你说的容易。
Maybe some folk songs to start with?
先演奏些民歌吗？