Aci-compound
[化] 酸式化合物
🧩 词语组成解析
[计] 车辆自动识别
🗣️ 情景例句
I feel bad
我觉得很不安
There must be someone behind the door.
门后必然有人在。
And he promptly handed the sheet of paper to the gaoler.
说完，他一下子把信递给狱卒。