About
HSK levels

    xiàn

    1. trap; pitfall
    2. to get stuck; to sink; to cave in
    3. to frame (false charge)
    4. to capture (a city in battle); to fall (to the enemy)
    5. defect

    他不小心掉进了一个陷阱里。 Tā búxiǎoxin diàojìnle yīgè xiànjǐng lǐ.