Quaternarization
[化] 季銨化作用; 門秀金反應(yīng)
??? 情景例句
I see him on the train every day but we are not on speaking terms.
我每天都在火車上見到他，但彼此沒有說過話。
They had a baby last month.
他們上個月有了一個嬰兒。
How's the order coming along?
我們訂的貨怎樣呢？