Thee body has at least one pointed end and comprises at least one active material.
主体具有至少一个尖端，并且包含至少一种活性材料。 。
At the end, issues of further research and exploration were pointed out.
文章在最后还指出了有待进一步研究和探索的问题。
It resembled a short bar of iron, pointed like a pike at one end.
好象是根短铁钎，一端磨到和标枪一般尖。
Pottery pot with sand, I pointed at the end of small bottles.
陶器有粗砂罐、小口尖底瓶等。
The body has at least one pointed end and comprises at least one active material.
主体具有至少一个尖端，并且包含至少一种活性材料。
The body has at least one pointed end and comprises at least one active material.
主体具有至少一个尖端，并且包含至少一种活性材料。
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