Phyllograptidae
葉筆石科
??? 情景例句
What made you change your job so frequently?
為什么你經(jīng)常轉(zhuǎn)工？
The houses downtown are very expensive.
市區(qū)的房子很貴。
Which would you like, tea or milk?
你喜歡哪樣，茶還是牛奶？