Doesn't it seem a bit unrealistic to be able to walk into a dark space, hit a switch, and instantly fill the entire space with light?
在黑暗空间里行走，碰一下开关，瞬间就会点亮整个空间——是不是显得有些不现实？
He has designed an adjustable laser that can switch instantly between soft-tissue and hard-tissue wavelengths.
他已经设计出一种可以调整的激光，它可以针对软、硬组织迅速转换波长进行治疗。
The psychological change from our work to life could not be instantly changed like a switch.
人们从工作到生活的心理转变，并不能像拨动开关一样迅速切换。
The psychological change from our work to life could not be instantly changed like a switch.
人们从工作到生活的心理转变，并不能像拨动开关一样迅速切换。
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