Without precedent
无先例可援,史无前例
🧩 词语组成解析
without
[wɪ'θaʊt]
adv. 在外部;户外;缺少;没有或不显示某事物;
prep. 没有，缺乏;在外面;
conj. 除非，如果不;
🗣️ 情景例句
I'll give him your message as soon as he's available.
他一有空我就转告他您的留言。
How much will it cost?
这种商品成本价是多少？
Are there any women near the house?
房子附近有女人吗？