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1·He ran around the corner, cannoning into a group of kids.

他跑过拐角时与一群小孩相撞。《牛津词典》

2·By cannoning water, sand and chemicals at them, a process known as hydraulic fracturing, or “fracking”, the bubbles can be released.

用水、沙、化学药物撞击它们的“高压水砂破裂法”能释放出气泡，这个过程也称“水力压裂”。

(1)water cannon防暴水枪；高压水炮

(1)cannon foddern. 炮灰

(1)loose cannon我行我素不顾后果的人