1. But the doctor did look like a goat with his gray chin whiskers wagging away at a great rate, and with difficulty she stifled a giggle.
    不过，这位大夫下颔上那把不停地摇摆着的灰色胡子，也的确使他像只山羊，她瞧着瞧着便忍不住格格地笑了。

2. But the doctor did look like a go at with his gray chin whiskers wagging away at a gre at r at e, and with difficulty she stifled a giggle.
    不过，这位大夫下颔上那把不停地摇摆着的灰色胡子，也的确使他像只山羊，她瞧着瞧着便忍不住格格地笑了。