Allanic acid
[化] 褐帘石\\n[医] 脲乙醛酸
🧩 词语组成解析
🗣️ 情景例句
I was when I first came to the United States.
当我刚到美国来的时候是感到有点紧张。
I tried calling you several times yesterday but I couldn't get through.
我昨天给你打了几次电话，但都没有打通。
The hunt went on for several weeks, but the puma was not caught.
搜寻工作进行了好几个星期，但始终未能逮住那只美洲狮。