他在光的实际本性问题上犹豫过很久。
He remained ambivalent for a long while about actual nature of light.
在这世界上犹豫不决成就不了任何事。
很多人在砍价上犹豫是因为不想让别人看低自己。
Many people hesitate to haggle because they don't want to seem cheap.
很多人在砍价上犹豫是因为不想让别人看低自己。
Many people hesitate to haggle because they don't want to seem cheap.
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