这充分说明了我们的努力没有白费 (This fully demonstrates that our efforts were not in vain)
Grammar & Usage
How it works
This is a complex sentence expressing a conclusion. "这" (zhè) acts as the subject, referring to the preceding context or situation. "充分说明了" (chōngfèn shuōmíng le) means 'fully demonstrates/illustrates', where "了" (le) indicates completion. The object of "说明" is the clause "我们的努力没有白费" (wǒmen de nǔlì méiyǒu báifèi), meaning 'our efforts were not in vain'.
Sample sentences
学生们在比赛中取得的优异成绩，这充分说明了我们的努力没有白费。
The excellent results achieved by the students in the competition fully demonstrate that our efforts were not in vain.
看到项目最终成功上线，这充分说明了我们的努力没有白费。
Seeing the project successfully launched in the end, this fully demonstrates that our efforts were not in vain.
经过多年的研究，终于取得了突破性进展，这充分说明了我们的努力没有白费。
After years of research, a breakthrough was finally made, which fully demonstrates that our efforts were not in vain.
Quick facts
Often used with
Mnemonic
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Example
学生们在比赛中取得的优异成绩，这充分说明了我们的努力没有白费。
The excellent results achieved by the students in the competition fully demonstrate that our efforts were not in vain.
看到项目最终成功上线，这充分说明了我们的努力没有白费。
Seeing the project successfully launched in the end, this fully demonstrates that our efforts were not in vain.
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