I've never been able to spell.

我一直不会拼写。

《牛津词典》

youdao

Clara had been studying ASL for the past year to help blind and deaf people and she knew she'd be able to finger spell into the man's palm.

克拉拉在过去的一年里一直在学习美国手语，以帮助盲人和聋人，她知道她可以在这个人的手掌上拼写。

youdao

This will include scanning and speech synthesiser equipment and hand-held spell checkers - and in some cases, pupils will be able to keep equipment for use in work when they leave school.

BBC: Hi-tech help for special needs