sus.te.nanceSUPPORT 5sQs7tI7nEnts n [U] fml emotional or mental support 支持，激励 I rely on my family for emotional sustenance. 我依赖家庭给予我精神支持。 When her husband died, she drew sustenance from/she found sustenance in her religious beliefs. 丈夫死后，她在宗教信仰中寻求精神寄托。