1. Passengers must pass through metal detectors, and their carry-on bags are put through X-ray machines. 乘客必须通过金属探测器检测，其随身物品也必须经过X射线设备检测。
2. Only when it has been chewed up and digested almost to a liquid can the food pass through the rumen and on through the gut. 只有在食物被咀嚼并几乎消化到液态后，它才能通过瘤胃进入肠道。
3. One source of error is refraction, the bending of light beams as they pass through air layers of different temperature and pressure. 误差的一个来源是折射，即光束通过不同温度和压力的空气层时发生的弯曲现象。
4. I bored a hole so that the bolt would pass through. 我钻了一个孔，这样门闩就能穿过去。
5. An estimated 1,600 vessels pass through the strait annually. 估计每年有1600艘船经过这个海峡。
