Siderography
n. 钢凹板雕刻术
🗣️ 情景例句
And have you had an engineer come in to do an inspection?
你们可有一个工程师来做过检查吗？
He has been to America.
他曾去过美国。[表示曾经有过的经验]
Come upstairs and see it.
到楼上来看看吧。