供应困难making: n. 1.制作(物),制造(物),生产;一次制造量;发展 ...supply: adv. =supplely. difficult: adj. 1.困难的,(工作等)艰难的。 2.执拗的,顽 ...be difficult of: 难于, 不易be difficult to: 很难去……下载手机词典可随时随地查词查翻译