1. The presence of a faint odor in the room made it detectible to some people, but not others.
房间里微弱的气味的存在使得一些人可以察觉到，但其他人察觉不到。
2. The new technology allows for even the smallest traces of substances to be detectible by the machine.
这种新技术使得机器可以检测到甚至微量物质的存在。