Sandiver
n. 玻璃沫
🗣️ 情景例句
I'll let you off this time.
这回我放过你。
If you run after two heares, you will catch neither.
两头落空。
Even more processes are never patented at all but kept as secret processes.
更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。