mid-ocean ridge（洋中脊）是什么意思？音标发音+图解场景

洋中脊 /ˈmaɪkɹəʊnjˌuːklɪəs/ n

English: mid-ocean ridge · 洋中脊

释义：Group of underwater mountain chains criss-crossing the oceans; it is formed by an outpouring of magma.

这个词出现在以下图解场景（1）