wǒ / gāng kāi shǐ / xué tǒng jì / shí / cháng cháng / fēn bù qīng / jǐ ge / Xī là zì mǔ / de / xiě fǎ

我刚开始学统计时，常常分不清几个希腊字母的写法。

When I first started studying statistics, I often could not tell apart the written forms of several Greek letters.