Redstone
n. 赤砂岩；红石导弹
🗣️ 情景例句
I just received your letter and I want to let you know my opinion on your plans for the future.
来信已收到，我想告诉你我对你将来打算的看法。
You can count on us.
你可以信赖我们。
He did everything very slowly.
他做什么都很慢。