🧩 词语组成解析
walker
['wɔ:kə]
n. 散步的人;（帮助小孩学走路用的）学步车;助步车;助行架;
n. 珀西（男子名）
🗣️ 情景例句
Oh, Somebody's at the door. I have to go.
哦，有人来了，我得去开门。
She knew that a vocation this year was out of the question.
她知道今年不可能有假期。
I have been putting on weight.
我开始发胖了。