khó * ☊ 
hard, difficult * ☊ công việc khó nhọc * ☊ hard, difficult work * ☊ khó * ☊ hard, difficult * ☊ khó khăn * ☊ difficulty; hard, difficult * ☊ khó nhọc * ☊ hard, difficult, painful, laborious * ☊ ngặt nghèo * ☊ hard, difficult, serious (illness) * ☊ ráo riết * ☊ hard, difficult, desperate * ☊ vất vả * ☊ hard, difficult; diligent * ☊