左: Ⅰ名词1.(面向南时靠东的一边, 与右相对) the left side; the left 短语和例子左下角 the lower left corner; 左侧 the left side; 靠左行! keep to the left!2.(东) east 短语和例子山左 areas east of the taihang mountains, specifically
Example Sentences:
1.
A criterion theorem of having no finite coverings for a finitely generated module m over a semisimple ring r is given 对半单环上有限生成左模给出一个无有限覆盖的判定定理。