他不仅两周内就学会了编程，还开发了一款帮助残障人士出行的手机应用。
Not only did he learn to program in two weeks, but also he built a mobile app that helps people with disabilities get around.
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not英 /nɒt/|美 /nɑt/
only英 /ˈəʊnli/|美 /ˈoʊnli/
did英 /dɪd/|美 /dɪd/
but英 /bʌt/|美 /bʌt/
also英 /ˈɔːlsəʊ/|美 /ˈɔlsoʊ/
解释
句首 Not only 触发倒装，did 提前至主语 he 之前；learn 用原形；but also 引出递进信息 he built...。
Not only did he learn to program in two weeks, but also he built a mobile app that helps people with disabilities get around.
句首 Not only 触发倒装，did 提前至主语 he 之前；learn 用原形；but also 引出递进信息 he built...。