Annuloplasty
瓣環成形術
??? 情景例句
I can't go another step because I'm pooped.
我一步也走不動了，我已經精疲力盡了。
After dinner sit a while; after supper walk a mile.
午餐之后坐片刻，晚飯之后走一里。
Even more processes are never patented at all but kept as secret processes.
更多的工藝過程根本就不會取得專利權，而是作為秘方保存著。