Question

What does"keep a weather eye on" mean? 是“严密注视”的意思吗？

Answer 1

不是。
Weather-eye: to keep a sharp eye to the weather, to keep alert for storms and changing weather. A sailor would say “keep your weather-eye open” or “keep a weather eye on the horizon.”
各种网络词典给的解释都差不多，大概是：善于观测天气的眼睛。
原句keep a weather eye on the horizon直译过来就应该是：随时注意地平线。
希望对你有帮助！

Answer 2

keep a weather eye on是固定词组，意为“对……随时留意；对……小心提防”。
英文解释是to watch sb/sth carefully in case you need to take action.
来自牛津高阶字典。

Answer 3

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