Complete the following statements with proper words or expressions according to the course book.The relationship between sound and meaning is arbitrary or ( ).
Complete the following statements with proper words or expressions according to the course book.The relationship between sound and meaning is arbitrary or ( ). 【正确答案】：CONVENTIONAL 【题目解析】：声音和意义之间的象征关系几乎都是任意的或约定俗成的。
