呼吸的全过程包括三个相互联系的环节，即、和。其中外呼吸包括____和____。
查看答案
________ is about principles of forming understanding correct English sentences.
________ examines how meaning is encoded in a language.
________ is the study of meaning in context.
Explain the term "phonetics".
微信支付 
支付宝支付