verb🔗Share粉刷天花板，给...装天花板。 To line or finish (a surface, such as a wall), with plaster, stucco, thin boards, or similar."The contractor will ceiling the new classroom walls with plaster before painting. "承包商会在粉刷之前，先用石膏给新教室的墙壁做天花板。architecturebuildingessentialChat with AIVocabulary GamePractice Reading
verb🔗Share设置上限，限定。 To set a higher bound."The teacher decided to ceiling the grade for the final project at 95%. "老师决定把期末项目的分数上限设定为95%。businesseconomyessentialChat with AIVocabulary GamePractice Reading
noun🔗Share天花板，顶棚。 The overhead closure of a room."the dining room had an ornate ceiling"餐厅的顶部是装饰华丽的天花板。architecturebuildingpartessentialChat with AIVocabulary GamePractice Reading
noun🔗Share上限，最高限度. The upper limit of an object or action."The ceiling on the amount of homework we can assign is five pages per night. "我们每天布置的家庭作业最多不能超过五页。architecturebuildingessentialChat with AIVocabulary GamePractice Reading
noun🔗Share升限，最高飞行高度 The highest altitude at which an aircraft can safely maintain flight."The airplane's ceiling was 30,000 feet, so it couldn't fly any higher safely. "这架飞机的升限是三万英尺，也就是它的最高安全飞行高度，所以它不能再往上飞了。technicalvehiclemilitaryessentialChat with AIVocabulary GamePractice Reading
noun🔗Share云底高，升限 The measurement of visible distance from ground or sea level to an overcast cloud cover; under a clear sky, the ceiling measurement is identified as "unlimited.""The pilot reported a low ceiling, limiting visibility for the landing. "飞行员报告说云底高很低，限制了着陆时的能见度。weathernauticalspaceessentialChat with AIVocabulary GamePractice Reading
noun🔗Share上限，最小整数。 The smallest integer greater than or equal to a given number."the ceiling of 4.5 is 5, the ceiling of -4.5 is -4"对于 4.5 来说，它的上限（最小整数）是 5；对于 -4.5 来说，它的上限（最小整数）是 -4。mathnumberessentialChat with AIVocabulary GamePractice Reading
noun🔗Share内舱壁，船舱内顶。 The inner planking of a vessel."The ship's ceiling was made of sturdy oak planks. "这艘船的内舱壁是用结实的橡木板制成的。nauticalpartessentialChat with AIVocabulary GamePractice Reading
