这本书足以帮助你提高中文水平。
zhè běn shū zúyǐ bāngzhù nǐ tígāo zhōngwén shuǐpíng 。
This book is sufficient to help you improve your Chinese level.
他的努力足以让他获得成功。
tāde nǔlì zúyǐ ràng tā huòdé chénggōng 。
His efforts are sufficient to help him achieve success.
这个计划足以满足我们的需求。
zhègè jìhuá zúyǐ mǎnzú wǒmen de xūqiú 。
This plan is sufficient to meet our needs.