trouble point的用法和樣例：
例句
- Restart packages from the point of failure by using checkpoints.
使用檢查點從故障點重新啟動包。 - An integral aspect to implementing a highly available messaging system is to ensure that no single point of failure can render a server or network unavailable.
實現高可用性郵件系統的一個整體方面是確保任意單個故障點不能導致伺服器或網路不可用。
