Echinidae
海胆科
🗣️ 情景例句
Their TV news is going to cover it.
他们的电视新闻将报导这一消息。
You're sure of passing the exam if you work hard.
只要用功，主汪定能考及格。
Two men who recently spent five days on a coral island wished they had stayed there longer.
最近有两个人在一座珊瑚岛上呆了5天，他们真希望在那儿再多呆一些日子。