When two strangers meet, they often shake hands.
两个陌生人见面，常常会握握手。
This habit is thousands of years old.
这个习惯，已经几千年啦。
Long ago, people carried knives and swords.
古时候的人，身上带着刀和剑。
They held out their right empty hand first.
他们先伸出空空的右手。
It meant, "Look, I have no sword."
意思就是：你看，我手里没家伙。
A handshake said, "I will not hurt you."
握手就等于说：我不会伤害你。
Today we shake hands just to be friendly.
今天我们握手，就是表达友好。
