is too small太小了。
too ：adv.(用于形容词和副词前)太，过于，过度；
small：adj.(尺寸、数量、程度等)小的；(服装、食品、家用设施等)小号的
相关介绍
The window was far too small for him to get through
窗户对他来说实在太小，他钻不过去。
No detail was too small to escape her attention
再小的细节都逃不过她的眼睛。
No matter was too small to warrant his attention.
再小的事也会引起他的注意。
