Test problem
[计] 考题
🧩 词语组成解析
🗣️ 情景例句
Be patient whit him, he's a child.
耐心点，他还是个小孩。
My brother wants to learn how to sail a boat.
我的兄弟要去学操纵帆船。
It then sends these signals down an ordinary telephone line to another fax machine, which changes the signals back into the shapes of letters.
然后把这些符号通过一条普通的电话线送到另一台传真机上，传真机又把符号变为字母形状。