tā / chū / mén / mǎi / dōng / xi / huí / lái / shí / què / fā / xiàn / zì / xíng / chē / yǐ / bù / jiàn / zōng / yǐng

他出门买东西，回来时却发现自行车已不见踪影。

He went out to buy something, but when he returned, he found that his bicycle had vanished.