lǎo / shī / zhǐ / kàn / le / wǒ / yì / yǎn / wǒ / biàn / xīn / lǐng / shén / huì / de / guān / shàng / le / chuāng / hù

老师只看了我一眼，我便心领神会地关上了窗户。

The teacher gave me a look, and I intuitively understood that I should close the window.