This is an innovation without precedent.

这是一项没有先例的创新。

Wang Hao is not without precedent.

王皓并不是没有前车之鉴.

Nationalizing banks is not without precedent.

银行国有化并非无先例可循。

It was racy stuff for China, but hardly without precedent.

这在中国是一个封闭的话题，几乎没有先例。

The appointment of female commander of a navy warship is without precedent.

任命海军军舰女舰长是没有先例的.

The appointment of female commander of a navy warship is without precedent .

任命海军军舰女舰长是没有先例的。

The plan is without precedent and even defies recommended public health advice.

这项计划是没有先例的,甚至违反公众健康忠告的建议.