Ulmal
尤尔马尔高强度铝镁合金
🗣️ 情景例句
What does John do?
John现在做什么事？
Tread on a worm and it will turn.
困兽犹斗。
One Saturday afternoon, I hauled the machine into the garden and had a close look at it.
一个星期六的下午，我把割草机拉到了花园里，仔细检查了一番。