认识黏土(2)
来源：沪江听写酷
2007-08-02 00:00
CLAY，黏土，是从哪里来的，又上哪里去呢？
You can add materials to clay to gain desired results. For example, you can add sand to prevent tiny breaks or lines from forming in the finished product. But you should not use sand from the coasts of oceans. Instead, you should use sand from rivers or from other areas of land that ar…
- 相关热点：
- British Council
