2 sentences

1. 很久没写英文，笔头生疏了。

   hěn jiǔ méi xiě Yīng​wén, bǐ​tóu shēng​shū le.

   I haven't written in English for a long time, so my writing has become rusty.

   Source: Dong Chinese Dictionary

2. 他擅长缀文，笔下辞藻华丽。

   tā shàn​cháng zhuì wén, bǐ xià cí​zǎo huá​lì.

   He is skilled at writing, and his prose is very ornate.

   Source: Dong Chinese Dictionary