（加勒比海盗3结尾处）Will说keep an “weather” eye....是什么意思？

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。
你要光问weather那就大概是“善于观测天气的”

谢谢楼上的~我也学到了~