Tā / bù / gǎn / gōng / kāi / shēn / fèn / zhǐ / néng / xiě / nì / míng / xìn / biǎo / dá / zì / jǐ / de / yì / jiàn。

她不敢公开身份，只能写匿名信表达自己的意见。

She did not dare reveal her identity and could only express her views in an anonymous letter.