Ultralumin
超硬铝, 由尔特拉铝合金
🗣️ 情景例句
I've been thinking about it for weeks now.
为这事我想了几个星期。
Between two stools one falls to the ground.
脚踏两头要落空。
What about our claim?
我们的赔偿怎么样啦？