besureabout的用法及例句
be sure about sth.
It is impossible to be sure about the value of land.
土地的价值是无法确定的.
扩展资料
be sure of 与 be sure about 的区别：be about to
be sure of 确信
例句：She looked over her shoulder to be sure of her footing.她扭头看了看后面以确认自已是否站稳了.
be sure about 对.很有把握
例句：You can be sure about their interest in it.你可以肯定他们对引很感兴趣.

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。