单词：smooths
v. （使）光滑, （使）平坦, （使）顺利( smooth的第三人称单数 ); 缓和; 使平和; 使（举止等）高雅
n the act of smoothing
v make smooth or smoother, as if by rubbing
v make (a surface) shine
v free from obstructions
v make smooth or smoother, as if by rubbing
v make (a surface) shine
v free from obstructions