Accumulation disease
[医] 贮积病, 沉着病
🧩 词语组成解析
accumulation
[əkju:mjʊ'leiʃ(ə)n]
n. 积累;堆积物;累积量;
🗣️ 情景例句
You must develop the muscles of your speech organs to produce unfamiliar sounds.
所以你必须训练和发展你的发音器官（声带、舌、口、鼻腔等）的肌肉，以便发出陌生的（另外一种语言）声音。
Arthur must send that letter soon.
亚瑟，你必须立刻投递那封信。
But of course, he can learn by himself. He has a book and a dictionary.
但当然，他也可以自学。他有书和词典。