就是了 jiùshìle [sentence-final] Origin Definitions Defs Strokes Stroke Words Sentences Sents 就是 jiùshì verb [reassurance] Used at the end of a sentence to express a request or to reassure someone, often followed by 了 le.了 le particle [modal particle] Placed at the end of a sentence to indicate a new situation, a change in circumstances, or to convey imperative or exclamatory force.