He was a tubby little man in his fifties, with sparse hair.他50来岁，头发稀疏，身材矮胖。Many slopes are rock fields with sparse vegetation.许多山坡都是石头地，植被稀疏。The sparse line of spectators noticed nothing unusual.那一排稀稀落落的观众没留意到任何不寻常之处。...
先将糖稍稍加热，以使其溶解得更快些。Warm the sugar slightly first to make it dissolve quicker.能溶解血栓的药物会有助于治疗心脏病。Drugs that dissolve blood clots can help people survive heart attacks.把盐放在温水里溶解。Dissolve the salt in the warm water....