Bathophenanthroline
[化] 红菲咯啉; 4,7-二苯基-1,10-菲咯啉
🗣️ 情景例句
Sorry, I have to say good-bye.
我不得不说再见了。
Is the plain along the river good for farming?
河畔的平原易于发展农业吗？
Yes. You have to practise a lot.
是的，你得大量的练习。