Zonolysin
糜蛋白酶
🗣️ 情景例句
International travel involves a lot of waiting around in airports.
经常在机场等候是环球旅行的一部分。
There is noaccounting for tastes.
人各有所好。
When I got to the theatre I found that they had sold all the tickets.
我到剧院时，发现所有的票都售完了。