短期的成功有时会掩盖制度上的深层问题。

Duǎnqī de chénggōng yǒushí huì yǎngài zhìdù shàng de shēncéng wèntí.

Short-term success can sometimes conceal deep structural problems in the system.

他试图用笑容掩盖内心的紧张。

Tā shìtú yòng xiàoróng yǎngài nèixīn de jǐnzhāng.

He tried to use a smile to hide his inner nervousness.

大雪掩盖了山路上的脚印。

Dàxuě yǎngài le shānlù shàng de jiǎoyìn.

The heavy snow covered the footprints on the mountain path.