夏威夷群岛由八个主要岛屿组成。

Hawaii consists of eight main ___islands.

她的办公桌在嘈杂的办公室里就像一座安静的小岛。

Her desk was like an ___island of tranquility in the noisy office.

司机们必须绕过马路中央的安全岛行驶。

Drivers must go around the traffic ___island in the middle of the road.