keep a close eye upon的用法和樣例：
例句
- He used a torch to see into the dark cupboard.
他用一隻手電筒照看黑暗的櫥櫃。 - Please keep an eye on the children.
請照看一下孩子們。 - These children were in a state of virtual neglect.
這些孩子實際上處於無人照管的狀態。 - Could you keep an eye on my suitcase for a moment?
你能給我照管一會兒手提箱嗎？ - She has a large family on her hands.
她有許多子女需要照顧。 - We keep a watchful eye on our elderly neighbors.
我們留心照顧鄰里的老人們。
