The police were on to the criminals' plan very quickly.

警察很快就明白了這幫罪犯的計(jì)劃。

語(yǔ)言點(diǎn):be on to 了解,看透

這篇材料你能聽出多少?點(diǎn)擊這里做聽寫,提高外語(yǔ)水平>>