My method is "write and pronounce". Writing words on paper leaves a visual memory trail of the words. If you just look words, you may forget them quickly, but writing them makes you concentrate on them more efficiently¹. Reading words aloud gives you a phonetic² memory trail. It creates an echoing sound in my head and that sound I can recall later. When you know words enough, you will understand the principles of word formation in that language. This helps you guess meanings of unfamiliar³ words, when you read, and create word families in your memory.

我的方法是“写+念”。把单词写在纸上能加深这个词的视觉记忆。如果只是看看单词，你可能很快就把它们忘了，但书写能让你更专注。大声朗读单词能加深单词的听觉记忆。这样做在大脑里创造了一个之后也能再次想起的回声。当你的词汇量足够大时，你会懂的该语言的构词法。在读到不熟悉的单词时，它能帮你猜出词义，还能让你记住这一系列单词。

Every day, I'd try to write down 10-50 words or phrases in French which I didn't understand, or words or phrases in English which I didn't know how to render in French. I'd go home and spend an hour or more looking them up in the dictionary.

每天写10到50个法语新单词或词组，或是我不知道如何用法语翻译的地道的英语单词词组。回家后花1个多小时在字典里查找这些单词。

I'd read newspapers, comic books, textbooks, advertisements, and novels.

读新闻、漫画、课本、广告和小说。

I'd talk to teachers, fellow students, strangers at the bus stop, store clerks, etc.

和老师、同学、车站遇到的陌生人和店员等聊天。

By the way, I rarely watched TV, listened to the radio, watched movies, or listened to music in French... though this might just be a personal thing. I often have great difficulty understanding my native language, English, in recorded form. I still find recorded audio extremely difficult to understand in French, despite the fact that I can carry on largely fluent in-person conversations with native speakers.

对了，我很少看法语电影电视，听法语之声或歌曲，当然这可能只是我自己的问题。虽然英语是我的母语，我还是经常觉得要听懂英语录音挺难的。。我基本上能够很流利的和母语为法语的人对话，但还是觉得法语录音很难懂。