老师，您的专业是词汇学，您也一直强调词汇的重要性，可是我很困惑，根据我自己的学习经验，明明积累了一大堆的单词，语言能力也并没有因此显著提高，很多期刊文章仍然看不懂。
lǎoshī ，nín de zhuānyè shì cíhuìxué ，nín yě yīzhí qiángdiào cíhuì de zhòngyàoxìng ，kěshì wǒ hěn kùnhuò ，gēnjù wǒ zìjǐ de xuéxí jīngyàn ，míngmíng jīlěi le yīdàduī de dāncí ，yǔyán nénglì yě bìng méiyǒu yīncǐ xiǎnzhù tígāo ，hěn duō qīkān wénzhāng réngrán kànbudǒng 。
Sir, your specialism is lexicology, and you always underline the importance of lexicon, but I'm confused. According to my own learning experience, I've accumulated a large vocabulary, but my language ability has not improved noticeably as a result. There are still a lot of journal articles that I can't understand.