besureabout的用法及例句

回答

瑞文問(wèn)答

2024-10-02

be sure about sth.
It is impossible to be sure about the value of land.
土地的價(jià)值是無(wú)法確定的.

擴(kuò)展資料

　　be sure of 與 be sure about 的區(qū)別：

　　be sure of 確信

　　例句：She looked over her shoulder to be sure of her footing.她扭頭看了看后面以確認(rèn)自已是否站穩(wěn)了.

　　be sure about 對(duì).很有把握

　　例句：You can be sure about their interest in it.你可以肯定他們對(duì)引很感興趣.