Meaning of yǎn shì:
掩饰
to cover up; to conceal; to mask; to gloss over
Tā shìtú yòng wēixiào lái yǎnshì tā de gāngà.
他试图用微笑来掩饰他的尴尬。
He tried to cover up his embarrassment with a smile.
Tā shìtú yòng wéixiào lái yǎnshì tā de jǐnzhāng.
他试图用微笑来掩饰他的紧张。
He tried to conceal his nerves with a smile.
Tā shìtú yòng xiàoshēng lái yǎnshì tā de gāngà.
他试图用笑声来掩饰他的尴尬。
He tried to mask his embarrassment with laughter.
Tā xiǎng yào yòng wēixiào lái yǎnshì zìjǐ de gāngà.
他想要用微笑来掩饰自己的尴尬。
He wants to use a smile to gloss over his embarrassment.