Tā / tí / chū / de / jiě / shì / hěn / nán / zhàn / zhù / jiǎo / yīn / wèi / quē / shǎo / kě / kào / de / zhèng / jù

他提出的解释很难站住脚，因为缺少可靠的证据。

His explanation is difficult to defend because it lacks reliable evidence.