1. 负重担：负债累累heavilyindebt | 负重担burdened | 负罪的incriminatory

2. 负荷的：burdenapportionment || 负荷的分配, 装造费用分配 | burdened || 负荷的 | burdensome || 繁重的, 烦累的, 难以承担的

3. 負而不累：10. Bored 苦而不悶、枯而不燥 | 11. Burdened 負而不累 | 12. Burgled 掠而不奪

adj

1. bearing a physically heavy weight or load

e.g. tree limbs burdened with ice
a heavy-laden cart
loaded down with packages

Synonym: heavy-ladenloaded down

2. bearing a heavy burden of work or difficulties or responsibilities

e.g. she always felt burdened by the load of paper work