他的科研成就达到了学术界的顶峰。
His research achievements reached the ___pinnacle of academia.
教堂的尖顶上装饰着精美的石制小尖塔。
The church's spire was decorated with delicate stone ___pinnacles.
成为公司CEO是他职业生涯的巅峰。
Becoming the CEO was the ___pinnacle of his professional career.
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