improved upon短语¹⁴⁴⁹⁷²⁺² 基本例句 vt.改进 The development of the Hypervisor or virtual machine monitor by Atlas was improved upon and perfected by IBM over the next40 years. Atlas开发了 Hypervisor即虚拟机监视程序,在之后的40年 IBM一直在改进和完善它。 ibm One of the successes of this new type of sharing is open- source hardware, which, like open- source software, can be improved upon, shared, and remixed. 这种新型分享的成功案例之一便是开源硬件,和开源软件一样,它们能够被改进、分享和重组。 yeeyan