His felicitous words went down well in the region but were quickly forgotten.

　　他的巧妙措辭在該地區(qū)反響不錯，但很快就被人遺忘了。

　　The intensity is determined be a felicitous arrangement of the atomic energy levels.

　　這一強度取決于原子能級的`適當排列。

　　When she died I was filled with a sense of loss.

　　她去世后我心里充滿了失落感。

　　The void left by his mother's death was never filled.

　　他母親死后留下的空虛感永遠沒能填補上。