firm ground的用法和樣例：
例句
- Sure, it can be done, but it is much easier to juggle when one is standing on solid ground.
但是站在堅實地面變戲法就很容易，也是可行的。 - After having experienced the difficult solid ground season opening, Feidler has found the condition gradually, he has won the Olympic Games doubles champion and the US Tennis Open.
在經歷了艱難的硬地賽季的開局后，費德勒逐漸找回了狀態，他贏得了奧運會雙打冠軍和美國網球公開賽。
辭彙搭配
- on firm ground 處於安全地位(有充分...
