the heaviness of a person or object that cannot or does not move by itself难以搬动的重物;沉重的人(或物)
She may be small but, when I have to carry her upstairs after she's fallen asleep, she's a dead weight (US also she is dead weight).她个子虽小,可当她睡着后我不得不把她抱上楼时才发现她重得要命。