唯一
[词典] only; unique; sole
[例句]
1、It's the only explanation I can think of.
这是我能够想到的唯一理由。
2、Point taken, but nowhere did we suggest that this yacht's features were unique.
你说得对，但我们压根没讲过这艘游艇的特色是唯一的。
3、My sole reason for coming here was to see you.
我到这儿惟一的原因就是来看你。