astute

这种感知是精明的，揭示出机敏的洞察。

The perception is ___astute, revealing shrewd awareness.

这位精明的投资者在市场暴跌前一周就悄悄抛售了所有持仓。

The ___astute investor quietly sold all his holdings just one week before the market plunged.

这位敏锐的侦探发现了嫌疑人时间线中的微小不一致之处，从而打开了案件的突破口。

The ___astute detective spotted the tiny inconsistency in the suspect's timeline that broke the case open.