Polypodiatae
水龙骨纲
🗣️ 情景例句
Rome wasn't built in a day.
罗马不是一天建成的。
How much does the elephant weight?
这个大象有多重？
All the Indins over the age of 8 had to carry their permits at all times.
所有8岁以上的印度人无论什么时候都得携带许可证。