无须的

I did not have to invent any tales about my past.

我根本无须为自己过去编造故事。

"Hypertext links create a Branching or network structure that permits direct, unmediated jumps to related information."

超文字连创设了一种或网状结构,可以直地、无须中步骤就得到有关信息。

They work in the sealless magnetic drive pumps,which transporting volatile,flammable,explosive and toxic solutions with no leakage.

它无须直机械联，而是利用稀土永磁体之相互作用，利用磁场可穿透一定距离和物质材料特性，进行机械能量传送。