Xh
abbr. extra hard 特硬的（代号）; extra heavy 特重的（代号）; extra high 特高的（代号）
🗣️ 情景例句
Robbie, there's a phone call for you.
Robbie，有你的电话。
Yay team!
加油！
A 55-storey building went up in 1913, and in 1931 the Empire State Building was completed, then the tallest building in the world.
1913年一座55层高的大楼拔地而起。1931年帝国大厦竣工，这在当时是世界上最高的大厦。