on his toes的用法和樣例:
例句
- That job kept John on his toes.
那項工作約翰忙個不停。
- He is in a bad temper this morning; take care not to step on his toes.
他今天上午心情不好,當心一點,不要觸犯他。
- He was on his toes waiting for the news of his lost child.
他坐立不安地等待他失蹤的孩子的消息。
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