Start as soon aphthous ulcer noted and continue until ulcer heals.一旦发现口腔溃疡,应尽早使用,直到溃疡愈合.What Offers the Most Effective Relief for Severe Aphthous Stomatitis?怎样最有效地医疗复发性口腔溃疡?What Offers the Most Effective Relief for Aphth...
He rested one of his crutches against the rail.他把一根拐杖靠在栏杆上。After the accident I spent six months on crutches .事故后我用了六个月的腋杖。When he broke his leg he had to walk on crutches.他腿摔断了以后,不得不靠拐杖走路....