进步progress可数吗

　　例句：

　　Progress is disappointingly slow.

　　进展慢得令人失望。

　　Progress has been painfully slow.

　　进度慢得令人焦急。

　　I feel heartened by her progress.

　　她的进步让我感到振奋。

　　You're making progress of a kind.

　　你也算是有点进步的。

　　Progress was slower than expected.

　　进展比预计的缓慢。