Pentafluorization
五氟化反应
🗣️ 情景例句
Richard and I will put them into the envelopes.
我和Richard把它们放进信封。
She is afraid he'll think her a pig.
她怕他会像对猪般的厌恶她。
Thanks. Oh, this is too small. Do you have a big piece, please?
谢谢。噢，这张太小了。请问你有一张大的吗？