Protracts
v. <贬>延长, 拖延（某事物）( protract的第三人称单数 )
🗣️ 情景例句
But the only time he's available this week
但这星期他有空的时间只有
If things were to be done twice all would be wise.
事事倘能做两次，人人都可称明智。
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。