1.American troops formed the spearhead of the attack.
军是这的先头部队。
2.The milliary believes you spearheaded the rebellion.
军方认为你是这叛乱中首当其冲的人。
3.He is spearheading the peace movement.
他充当这和平运动的先锋。
4.Earlier Dr Ferrell spearheaded a DARPA initiative to create a tiny chip that would fit into a person's ear and monitor vital signs such as body temperature, pulse and blood pressure.