cautious optimism

• 谨慎的乐观

cautious optimism的用法和样例：

例句

1. We view these changes with guarded optimism.
   我们以审慎的乐观看待这些变化。
2. But their optimism was premature, Shiva said.
   但是希瓦说，他们的乐观为时过早。