Twenty days pass and he still isn't back and Mick and Alan are starving, but a promise is a promise.

二十天过去了，莱斯仍旧没有回来。米克和阿兰饿坏了，但是毕竟他们发过誓。

youdao

Since the days of Alan Turing, the promise of a digital computer has been that of a universal machine, one that can be a word processor one minute and a robot brain the next.

FORBES: DARPA-Funded Radio HackRF Aims To Be A $300 Wireless Swiss Army Knife For Hackers