1 听音&发音
1.1
MW => ˈgra-mər
重音部分：怪怪的像法语；对照 ORIGIN 部分，果然是个法语！
BrE from LDOCE
- Check your spelling and grammar. 声调变化：扬、轻、高持、轻、降
- BrE from LDOCE the rules of English grammar 声调变化：轻、扬、轻、高持、降（好像这几个字不足够描述，因为轻和低持好像有区别，比如这里的the, 声调的维持和变化+声调的高低+声量的大小+占音时的长短（声音三要素在时间上的各种组合形式））
- BrE from LDOCE A dictionary lists the words, a grammar states the rules. 声调变化：轻、低持、扬、轻、低持 x 2
1.2 =>
2 形义的看和理解（没有写）&使用（没有阅读技巧+书法、可能以后补上。也没有语法和语用）
MW的释义很奇怪的重合，不如说我看不懂。 
1
a :
the study of the classes of words, their inflections (see INFLECTION sense 2), and their functions and relations in the sentence
b :
a study of what is to be preferred and what avoided in inflection (see INFLECTION sense 2) and syntax (see SYNTAX sense 1)
2 a : the characteristic system of inflections (see INFLECTION sense 2) and syntax of a language
b : a system of rules that defines the grammatical structure of a language
CCALD 恰到好处的4个释义
LDOCE
分化：gram + ma(a) , 从 graph 到 -gram, 让我想起之前讨论过的 histogram，photograph.
dictionary.com 看不完了。。
amazon 顺序前4: MW, OXFORD, MW NEW WORLD, COLLINS
amazon.co.uk 顺序前3: OXFORD, COLLINS, CHAMBER