投进 tóujìn throw into Origin Definitions Defs Strokes Stroke Words Sentences Sents 2 sentences 他轻松地把球投进篮筐。 tā qīngsōng de bǎ qiú tóujìn lánkuāng. He easily shot the ball into the hoop. Source: Dong Chinese Dictionary请把这封信投进邮箱里。 qǐng bǎ zhè fēng xìn tóujìn yóuxiāng lǐ. Please drop this letter into the mailbox. Source: Dong Chinese Dictionary