Incidentally, have you heard the news about Sue?顺便问一句，你听说过休的事了吗？Incidentally, I think you still owe me some money.顺便说一句, 我想你还欠我一些钱.The tower, incidentally, dates from the twelfth century.那座塔，顺便提一下，可以追溯到12世纪。...
The difference is mainly in the tone not in the drainage pattern or landform.所不同的主要在色调,而不在于水系型式或地形.These mathematical definitions make basic landform shape concept of limit determine nat.继而给出了如斜坡、山、山脊、凹地、谷地、鞍部等基本地貌形态的数学定...