Concentrating
[建] 浓缩
🗣️ 情景例句
2,3,4 ... now switch. ... 2 3 4
……现在 左右交替……
He's not feeling very well today.
今天他觉得不舒服。
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。