Tkn
[医][=total kjeldahl nitrogen]总克氏氮
🗣️ 情景例句
Three months ago.
三个月之前。
Who is the greatest playwrighter of our times?
谁是当代最伟大的剧作家？
He has pointed out that the tree is a useful source of income as tour-ists have been coming from all parts of the country to see it.
他指出，由于人们从全国各地纷纷前来参观这棵树，