English has a very difficult spelling system, and it can take a long time to spell out one word.

用英文写短信的困难在于拼写，拼一个单词就可能花费你很长的一段时间。

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Bell argued that the spelling system was a huge financial burden on schools and was to blame for poor literacy results compared with the rest of Europe.

贝尔认为，英语拼写系统对于学校是个庞大的财政负担，也造成了欧洲说英语国家识字率较欧洲其它国家更低。

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These changes led to one of the major discrepancies between the phonemic representations of words and morphemes, that is, between the pronunciation and the spelling system of Modern English.

这些变化使一些单词的音位表达和词素之间出现了很大的不一致。

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The orthography is the written system and spelling of a language.

VOA: special.2011.04.13

Adding to the stress is the complexity of the grammar, especially the far-from-perfect spelling system hellish past tense riddled with irregularities.

FORBES: English - The Language of Global Business?

Steve Forbes has done a commendable job spelling out why America's tax system must be simplified.

FORBES: Magazine Article