Flavanoid
黄烷类
🗣️ 情景例句
Marriage is an institution not to be taken lightly.
婚姻是个不能儿戏的体系。
One way or a round trip ticket?
单程票还是双程票呢？
We were, however, worried about our nearest neighbors, whose farm was low lying and who were newcomers to the district.
不过，我们很为我们的近邻担心。他们的农场地势低洼，而且他们又新来乍到。