Proper- ties的用法和樣例：
例句
- No default is provided, but it is essential to use proper settings here to get the best server performance.
沒有預設值，但在這裡使用適當的設置以獲取最佳伺服器性能是必須的。 - Engine parts, particularly the piston, must be kept free of varnish to ensure performance and proper cooling.
發動機零件尤其是活塞，必須保持光澤以確保性能和正確的冷卻。
