淵 yuān gulf Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 这位老教授知识渊博,令人敬佩。 zhè wèi lǎo jiàoshòu zhīshi yuān bó, lìngrén jìngpèi. This old professor is very knowledgeable and admirable. Source: Dong Chinese Dictionary