Pseudoindolyl
假吲哚基, 异氮杂茚基(有7种异构体)
🗣️ 情景例句
This is more than I can bear.
我再也受不了了。
What do you want us to do?
您看怎么办好？
for the monotonous rhythm of the wheels clicking on the rails soon lulls you to sleep.
车轮与铁轨间单调的嘎喳声很快就会送你进入梦乡。