The captain's cheerful laugh dispelled our fears.

　　船長(cháng)愉快的笑聲消除了我們的恐懼。

　　People with type B blood are cheerful and outgoing.

　　B型血的人開(kāi)朗外向。

　　Caring, outgoing, and cheerful people usually sit in the middle.

　　有愛(ài)心、外向、開(kāi)朗的人通常坐在中間。