Component 廿 niàn twenty (in Wu Chinese dialects) Stroke order ▶ 廿 used in 5 characters HSK 4 度 dù instrument or unit for measuring length HSK 5 席 xí mat woven from reed, bamboo, or grass strips, used to cover a bed, floor, or build a shelter HSK 7 昔 xī the past; former times (opposite of 今) 燕 yàn swallow (bird with small body, long pointed wings, and forked tail) 遮 zhē to block from view; to obscure