长期以来 chángqīyǐlái HSK7 for a long time Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 长期以来,该工厂的生产水平一直低落。 chángqī yǐlái, gāi gōngchǎng de shēngchǎn shuǐpíng yīzhí dīluò. The production level of this factory has been low for a long time. Source: Dong Chinese Dictionary