“凹”怎么读

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墙上仍然有她的子弹留下的凹坑。The pockmarks made by her bullets are still on the wall.我摩挲着小牛耳朵里面柔软的凹槽。I rubbed the velvety grooves inside the calf's ears.那些车辆一律都很破旧，锈迹斑斑，布满凹痕。The vehicles are without exception old, rusty and dente...