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？

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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。

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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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Customers can initiate a BBM Voice call directly, or instantly switch from a BBM text chat to talk, and back again.

ENGADGET: BBM 7 beta is open now, adds Voice feature for free calls over WiFi

With the press of a button, you can switch instantly to Android 4.1.

FORBES: Android, Windows 8 Join Forces For ASUS Transformer All-In-One Desktop/Tablet Hybrid

In addition, the Razer Nostromo boasts several enhancements over its predecessor including the ability to switch instantly between eight keymaps (up from three), and the flexibility of storing up to twenty gaming profiles from the previous limit of ten.

ENGADGET: Razer Nostromo gaming keypad supplants Belkin's n52te Speedpad, does it proud