作业帮21. Only____________ succeed in learning English. A. by working hard we can
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21. Only____________ succeed in learning English. A. by working hard we can
21. Only____________ succeed in learning English. A. by working hard we can
21. Only____________ succeed in learning English. A. by working hard we can
Only by working hard we can succeed in learning English.意为
只有通过努力学习我们才能成功地学英语
by是介词 后加动名词,表示方式,意为通过、、