Echinite
n. 海胆化石
🗣️ 情景例句
Why are you leaving your present job?
你为什么要放弃目前的工作？
I usually read a book to kill time.
我通常用看书来消磨时间。
Past experience has taught us that certain accomplishments are beyond attainment.
以往的经验告诉我们有些事是办不到的。