援兵 yuánbīng reinforcements Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 由于没有援兵,他们只好投降。 yóuyú méiyǒu yuánbīng, tāmen zhǐhǎo tóuxiáng. With no reinforcements, they had no choice but to surrender. Source: Dong Chinese Dictionary