acute observer

Someone who is very perceptive and capable of making keen distinctions. Lou may be retired now, but he's still an acute observer of advances in the medical field. Jean is an acute observer of human behavior, so I believe her when she says that those two are having issues right now.

Farlex Dictionary of Idioms.

See also:

be mad keen
be mad keen (on someone or something)
interest
be keen on (someone or something)
keen about (someone or something)
keen on
keen on (someone or something)
keen on doing
have a keen interest in
have a keen interest in (something)

词组	acute observer
释义	acute observer acute observer Someone who is very perceptive and capable of making keen distinctions. Lou may be retired now, but he's still an acute observer of advances in the medical field. Jean is an acute observer of human behavior, so I believe her when she says that those two are having issues right now. Farlex Dictionary of Idioms. See also: be mad keen be mad keen (on someone or something) interest be keen on (someone or something) keen about (someone or something) keen on keen on (someone or something) keen on doing have a keen interest in have a keen interest in (something)
随便看	okey okey-doke okey-dokey okey-dokey, Smokey OK yah OL old old as Adam old as Methuselah old as the hills old as the hills, (as) old bag old bat (old) battle-ax(e) old battle-axe old bean oldbie old bird old boy/girl old-boy network, the (old) chestnut old chestnut old cobber old codger old codger/coot/fogy