Xanthonation
黄原酸化作用
🗣️ 情景例句
Grandpa,
爷爷，
Would you hold the line, please, I will find out his number for you.
请你不要挂断，我替你找他的号码。
A burst of activity associated with the laying of submarine cables soon confirmed the Challenger's observation that many parts of the ocean were two to three miles deep,
海洋中很多地方可深达两三英里，