鞋里有砂子硌脚: there's some grit in the shoe and it hurts my foot
锢: Ⅰ动词1.(熔化金属堵塞) plug with molten metal; run metal into cracks; fill up cracks with melted metal2.[书面语] (禁锢) confine; imprison; hold in custodyⅡ形容词[书面语] (经久难治疗的) chronic 短语和例子锢疾 chronic illne
褥子没有铺平躺在上面硌得难受: that rumpled mattress was terribly uncomfortable