American troops formed the spearhead of the attack. 美军是这次进攻的先头部队。
The milliary believes you spearheaded the rebellion. 军方认为你是这次叛乱中首当其冲的人。
He is spearheading the peace movement. 他充当这次和平运动的先锋。
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. 前几年,Ferrel博士作为DARPA的创始先锋,发明了一种可放入人耳的小芯片,检测比如体温,脉搏,血压等重要指标。