The hammer is encrusted with calcium carbonate, which can happen quickly.
The hammer is encrusted with calcium carbonate, which can happen quickly.
锤子被碳酸钙包覆，是可能迅速发生的。
The hammer is encrusted with calcium carbonate, which can happen quickly.
锤子被碳酸钙包覆，是可能迅速发生的。