根据汉语意思完成句子，一空一词。
当你笑的时候，你的大脑就会向全身传递一种对身体有益的化学物质。
When you laugh, your brain sends chemicals around your body
that                                  you.
笑有助于保持身体健康，甚至能够帮助你战胜疼痛。
Laughing helps your body                 and can even help you                 .
不管什么原因，研究表明，英语格言“笑是灵丹妙药”到头来也许是真的。
                        , research shows that in the end, the English saying“                                          ”may be true after all.
谁笑到最后谁笑得最美。
He                                 best.
无论你有多么恨他，你都不应该当众取笑他。
       you hate him, you should not                         him in public.