HSK 7-9
轻而易举
qīng’éryìjǔeasy; with no difficulty
他轻而易举地解开了难题。
Tā qīng'éryìjǔ de jiěkāi le nántí.
He solved the difficult problem with ease.
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Appears across levels (7-9) in the HSK 3.0 word list.