您要查找的是不是：
- The girl lost her way in the cavern. 女孩在大洞穴中迷了路。
- The luminous intensity on unit area. 单位面积上的发光强度。
- Perhaps there is a fracture in the water pipe. 也许水管有裂缝了。
- The fracture of his left leg is very serious. 他的左腿骨折情况很严重。
- The family is the smallest social unit. 家庭是社会最小的单位。
- The fracture caused him intense pain. 骨折给他造成了剧烈的疼痛。
- A cavern was found by a traveler under the mountain. 一名游客在山下发现了一个大洞穴。
- Pressure is force per unit area. 压力就是电单位面积上的力。
- A set of data elements which are handled as a unit. 作为一个单元来处理的一组数据元素。
- The family is the basic unit of society. 家庭是社会的基本单位。
- We have lived too long in the telluric cavern. 我们在地洞里住得太久了。
- A metric unit of area equal to 10 ares. 十公亩面积的公制单位之一，等于十公亩。
- A metric unit of mass equal to 100 grams. 百克公制质量单位，等于100克。
- A unit of power equal to 1,000 watts. 千瓦功率的单位，等于1,000瓦。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- A unit of currency in Chile, Panama, and Uruguay. 分智利、巴拿马和乌拉圭的货币单位
- I see it in the depths of the inner cavern. 我看到了那洞窟的深处。
- Fracture of the leg can be very serious in old people. 老年人腿骨骨折有可能成为严重疾患。
- A metrical unit consisting of seven feet. 七韵步由七个音步组成的格律单位
- A unit of currency in North Korea and South Korea. 朝鲜和韩国的一种货币单位
