Perfect number
[计] 完全数
🧩 词语组成解析
🗣️ 情景例句
Hi. This is Robbie Stewart.
你好。我是Robbie Stewart。
He was so angry, he began to jump and down.
他愤怒得开始顿足。
Neither was I surprise when the train stopped at Widley, a tiny station a few miles along the line.Even a mighty express train can be held up by signals.
火车开出几英里即在一个小站威德里停了下来。对此，我不觉得奇怪，因为即便是特别快车也可能被信号拦住。