BBC在线收听下载:以色列总理呼吁国人团结一致

1.Carbon is one of the elements that all life needs, so the finding backs the view that comets might have brought the key ingredients to kick start our life when they bombarded the earth billions of years ago.

kick start 脚踏起动；脚踏起动器

The President has chosen to kick-start the economy by slashing interest rates.
总统选择通过大幅降低利率来重新拉动经济增长。

The government's attempt to kick-start the economy has failed.
政府刺激经济的努力失败了。

2.The Israeli Prime Minister Benjamin Netanyahu has called on Israelis to unit but not to take the law into their own hands

take the law into one's own hands 自己动手去惩罚

We must show that the United Nations is capable of fulfilling that purpose, so that States do not feel obliged or entitled to take the law into their own hands.
我们必须表现出联合国有能力履行这一宗旨，以使各国不必感到必须或有权利自行执法。

Because the teacher showed little interest in the fight, the boy's parents decided to take the law into their own hands and punish the attacker themselves.
由于教师对打架的事漠不关心，被打小孩的父母便决定自己动手来惩处打小孩的那个人。