zhè / bǎ / lǎo shì / zhé shàn / de / gǔ zi / suī rán / hěn / xì / zhǎn kāi / hòu / què / yī rán / láo gù

这把老式折扇的骨子虽然很细，展开后却依然牢固。

Although the ribs of this old-fashioned folding fan are very thin, they remain sturdy when opened.