Regioselective reaction
[化] 区域选择性反应
🧩 词语组成解析
[机] 特定选择的
🗣️ 情景例句
I want to keep the after-school programs--
我要保存这些课外活动--
I don't want to be with either of you!
我不希望跟你们两人在一起。
and he had seen there evidence enough to overthrow Aristotle and Ptolemy together.
观察到的论据足以把亚里士多德和托勒密一起推翻。