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。
