Atrial systole
[医] 心房收缩
🧩 词语组成解析
a. 门廊, 心房\\n[医] 房的, 前房的
n. 心脏收缩\\n[医] 收缩[期](心)
🗣️ 情景例句
These items shouldn't be difficult to come by
这些东西应该是不难弄到的，
He that would know what shall be must consider what has been.
欲知未然，须思已然。
although what impression any other civilization would thus get from us is best left unsaid.
至于其他文明行星对我们地球会有什么印象，还是不说为好。