My sight is failing, and I can't see to read any more.
我的视力正在下降,不能再看书了。
The security forces sighted a group of young men that had crossed the border.
安全部队在一瞬间突然看见了一群越过了边境的年轻人。
An agreement on many aspects of trade policy was in sight.
有关贸易政策诸多方面的一项协议即将签订了。