Vectorcardiographic
心电向量描记法的
🗣️ 情景例句
What's the tuition for one year of college?
大学一年的学费是多少？
Life without friend is death.
没有朋友的生活便等于死亡。
Who has not stood in awe at the sight of a spider pouncing on a fly, or a column of ants triumphantly bearing home an enormous dead beetle?
当看到蜘蛛扑向一只苍蝇时，一队蚂蚁抬着一只巨大的死甲虫凯旋归时，谁能不感到敬畏呢？