tā / luò / nàn / shí / péng / yǒu / bù / dàn / bù / bāng / máng / fǎn / ér / tóu / jǐng / xià / shí

他落难时，朋友不但不帮忙，反而投井下石。

When he was in trouble, his friends not only didn't help but actually kicked him while he was down.