Tevatron
一万亿电子伏加速器
🗣️ 情景例句
It was very thoughtful of you to send flowers.
你送花来，想得真周到。
Do I have to reserve a seat?
我一定要预订座位吗？
but each year, the dogs are still sent out into the snow whenever a traveller is in difficulty.
但每年还要派狗到雪山地里去帮助那些遇到困难的旅游者，