2bydegrees逐渐地,慢慢地Sheisgettingbetterbydegrees.她(的身体)逐渐好转。Bydegreestheirfriendshipgrewintolove.他们的友谊慢慢地变为爱情。bydesign故意地,蓄意地Didyoudothisbydesign?你是不是故意做这件事的?Hewastherebydesign,notbyaccident,aswehadatfirstsupposed.他到那里去是有意图的,并不像我们当初所猜想的那样出于偶然。【注】该短语习惯上是用介词by,不要受onpurpose(故意地)的影响,而误用介词on。比较bychance(无意地)和byaccident(无意地),两者均用by。byforce凭暴力,用武力,强迫地Heobtainedherconsentbyforce.他靠强迫手段取得了她的同意。Theyoccupiedbyforcethewholeterritory of Czecho.他们用武力侵占了捷克斯洛伐克的全部国土。byhand手工制的,(信)由专人送的Hersweaterisknittedbyhand.她的毛衣是手工编织的。Theletterwasdeliveredbyhand.这封信是专人递送的。byheart记住,背下Imustgetthispoembyheart.我得把这首诗背下来。Learninglistsofwordsoffbyheartisn’tagoodwaytoincreaseyour