Presystolic
[医] [心]收缩前期的, [心]收缩前的
🗣️ 情景例句
Oh, come on now.
噢， 别这样了。
Whom will you invite to the picnic?
你将邀请谁参加野餐？
Speculations about is nature have been going on for literally thousands of years,
人们对睡眠作用的种种猜测，确实有数千年之久。