常用的表义符号是由按常规规定其意义的符号，图案或实物图像构成的。
Symbol is a sign, figure or physical object, the meaning of which is established by.
正是实践，构成意识的现实物质基础。
It is practice that constitutes realistic material basis of consciousness.
正是实践，构成意识的现实物质基础。
It is practice that constitutes realistic material basis of consciousness.
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