这个应用程序对学习新单词很有用。
This app is useful for learning new words.
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useful英 /ˈjuːsfʊl/|美 /ˈjusfʊl/
This app is useful for learning new words.
This app is useful for learning new words.
This app is useful for learning new words.
在 App 中完整学习这张卡片
在 App 中学习