fricative
n, adj (consonant) made by forcing air through an opening made narrow by bringing the tongue or lips near to another part of the mouth 由摩擦产生的(辅音)
are fricatives. /f/、 /v/、 /W/是摩擦辅音.
🗣️ 情景例句
He is tough to work with.
他很难共事。
What is thelargest industrial center in this country?