i studied long time
我学习了很长时间
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Tonight I have studied English for a long time and remembered a lot of new words.
今晚学了好久英语, 记了好久单词.
youdao
I haven't studied English for a long time.
我已经好长时间没学英语了。
Look, I studied karate for a long time.
你能陪我一起去上空手道课吗？
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