Tetrazine
四嗪
🗣️ 情景例句
I'm ready, Grandpa. You name the day.
我准备好啦 ，爷爷。哪一天随你挑吧。
The postman always comes at 2 o'clock.
邮递员总是在2点钟来。
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。