be crowded with：挤满,拥塞

be covered with被......覆盖 | be crowded with挤满,拥塞 | be good for适于,在......期间有效

seventy eight：李明辉

15 张健恒 eighty | 16 李明辉 seventy-eight | 17 肖翠珩 seventy-eight

kidney tractor：肾脏拉钩

kidney stone forceps 肾取石钳 | kidney tractor 肾脏拉钩 | kill 杀,衰减、断开,抑制