Densogram
密度曲线图
🗣️ 情景例句
You can listen to BBC or VOA news if you want to improve your listening.
如果你想提高听力，你可以听英国广播电台或美国之音的新闻节目。
That cat judged the distance before he leapt across the ditch.
猫在越过沟渠以前便判断好其距离了。
An apple a day keeps the doctor away.
一天一苹果，医生远离我。