例句與造句

1. Devices are not required to have hardware memory management units or operating system virtual memory
   設(shè)備不必有硬件內(nèi)存管理單元( mmu )或操作系統(tǒng)虛擬內(nèi)存。
2. It's difficult to find hardware memory management unit in a sentence. 用hardware memory management unit造句挺難的