普通高中课程标准实验教科书 英语必修1 Unit 1 Reading Task

　　Living in peace, Hawaiians have developed a third sign of friendship. This personal friendship is shown by giving leis to one another. The lei, a string of flowers, is put over a friend's neck. Then the friend is given a kiss on the cheek. Visitors to the islands are also given leis. When they hear aloha, visitors begin to feel at home. Aloha also means "goodbye", so visitors will hear it again when they leave. It can also mean "our hearts singing together". Perhaps this is how most visitors will remember their new friendship.