A groyne is a low wall that starts on the beach and runs out into the sea. People build it so the water cannot carry sand and stones away along the shore. The sea is always moving sand sideways, little by little; the groyne stands in the way and holds a pile of sand on one side.

A groyne是 a low wall一道矮牆 that starts on the beach and runs out into the sea從海灘開始一直伸進海裡。 People build it人們蓋它 so that the water cannot carry sand and stones away along the shore是為了不讓海水把沙子和石頭沿著海岸帶走。 The sea is always moving sand sideways海一直在把沙子往旁邊帶， little by little一點一點地； the groyne stands in the way這道牆擋在中間 and而 holds a pile of sand on one side把一堆沙子留在一邊。

It is not the same as a sea wall, which stands along the land to keep waves out. A groyne is shorter, lower, and it points out to sea.

It is not the same as a sea wall它跟sea wall（海堤）不一樣， which stands along the land to keep waves out海堤是沿著陸地擋浪的。 A groyne is shorter, lowerA groyne比較短、比較矮， and而 it points out to sea它是朝海裡伸出去的。

You will hear this spelling in British English. In American English the same kind of wall is often called a groin — though actually that word also names the place where your leg joins your body, so the two meanings bump into each other.

You will hear this spelling in British English你會在英式英文裡看到這個拼法。 In American English在美式英文裡 the same kind of wall is often called a groin同樣這種牆常常叫做groin — though actually不過其實 that word also names the place where your leg joins your body這個字也指你的腿和身體連接的地方（鼠蹊部）， so所以 the two meanings bump into each other兩個意思會撞在一起。

The walls are often wood, rock, or concrete, and they usually sit in a row, with space between them.

The walls are often wood, rock, or concrete這些牆常常是木頭、石頭或混凝土做的， and而 they usually sit in a row它們通常排成一排， with space between them彼此之間留有間隔。