double-prism plummet

例句：

1. 1. The double-prism plummeted to the ground, leaving a trailof debris behind.
   双棱镜坠落到地面，留下了一片碎片。
2. 2. The scientistdiscovered that the double-prism plummeted dueto a fault in the mechanism.
   科学家发现双棱镜坠落是由于机械故障造成的。
3. 3.The accident involved a double-prismplummeting from a high tower,causing significant damage.
   这起事故涉及一个双棱镜从高塔坠落，造成了重大损害。