🗣️ 情景例句
He's a friend.
他是位朋友。
Help yourself.
请便！
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。