第一种L，要把舌头放在牙齿后面，抵住牙齿。
第二种L，要半张开嘴巴，舌头不抵住牙齿，并且发出声音。（类似干呕的声音）

Liz wants to travel the world.
That building is old.
People do not melt.
First of all, the shelter is full.
They are really skilled children.
I'm building my vocabulary.

26'