zài / gè / wèi / zhuān / jiā / miàn / qián / wǒ / zhǐ / néng / shuō / zì / jǐ / cái / shū / xué / qiǎn

在各位专家面前，我只能说自己才疏学浅。

In front of all these experts, I can only say that my knowledge is quite limited.