Bett
abbr. 英国教育技术展（the British Educational Training and Technology Show）
🗣️ 情景例句
Hello. My name is Ellen Stewart,
你们好 ，我叫Ellen Stewart
My book has a dark blue cover.
我的书有一个深蓝色的封面。
As long ago as the fourteenth century,
早在14世纪，