Bituminoid
a. bitumen的变形
🗣️ 情景例句
He couldn't teach such dull children.
他教不了这么笨的孩子。
You shouldn't refuse the children's request.
拒绝孩子们的恳求是件不好的事。
Well, it feels strange to have a twin sister.
是呀，有个孪生姐姐是觉得奇怪。