Toolbelts free both hands and lessen the risk of dropping hammers.工具腰带解放了双手，还减少了锤子掉落的风险。He felt hot tears dropping onto his fingers.他感觉到热泪掉到他的手指上。Burning embers started dropping from the ceiling.余火未尽的木块开始从天花板上往下掉。...
The deposit is genetically of hypothermal type . Ore _ forming solutions have abundant acidulous water and mephitic air.成矿溶液属于气成高温热水溶液,且富含大量碳酸或碳酸气.His acidulous remarks towards the mayor put everyone ill at ease.他对市长尖刻的评...