Opas
(opa 的复数) n. (Opa)人名；(葡、捷)奥帕\\nabbr. 人口事务局（Office of Population Affairs）；物价管理局 （Office of Price Administration）；公共事务局（Office of Public Affair）
🗣️ 情景例句
It hurts so much when a baby gets his first teeth.
小孩子长第一颗牙齿时好痛哟。
Let sleeping dog lie.
勿惊卧狗；切莫惹是生非。
First the electroencephalograph (which is simply a device for recording the electrical activity of the brain by attaching electrodes to the scalp) shows that while there is a change in the pattern of activity during sleep,
第一点，脑电图记录仪（不过是一种把电极接到头皮上记录脑电活动的仪器）显示，人在睡眠时大脑活动的方式有变化，