解释下列词语。
①湛蓝
②悠扬
①湛蓝，深蓝色。用靛青染成的颜色，晴天天空的颜色。②悠扬，形容词，形容声音高低起伏、持续和谐。
一种衣服现在打九折出售，现在售价是45元，每件的原价是多少元？
If you don’t finish your homework, I’m afraid your mother will ________ you.
—Yes. The road ________ up with several miles of vehicles within a few minutes.
