Brittleness is a vital weakness of ceramicas, strengthening and toughening ceramic matrix composites by carbon fiber is one of discussed focuses in the material science research field.

陶瓷材料的脆性是其致命弱点，通过碳纤维补强增韧陶瓷基复合材料是材料学术界关注的热点之一。

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Sandy has also shown a weakness in cable and phone companies' largely-fiber infrastructure over which they deliver "triple plays" of landline phone service along with video and broadband to millions of customers.

WSJ: Outages Expose Wireless Carriers' Backup Plans