length : the number of character for the word
word : the text
sentence : that sentence that word can be used, the word is changed to pinyin to show the word's location
english ; the meaning of that sentence
HSK ; the level that the word belong to

length: 1
sentence: 他一点儿一点儿zan3钱直到够买一辆汽车.
english: He saved money bit by bit until he had enough to buy a car.
HSK: 6