the toes of a ballet dancer's shoes(芭蕾舞鞋的)鞋尖
a place on a railway track where the rails (= metal bars on which the trains travel) can be moved to allow a train to change from one track to another(铁路的)道岔,转辙器
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net
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