come upon 雅思托福

Shortly Tom came upon the juvenile pariah of the village.

不会儿，汤姆村里的少年弃儿。

One morning we came upon an abandoned undernourished puppy on the porch.

天早在走廊我发现只养不良、被人抛弃的小狗。

An ingenious idea suddenly came upon him when he was taking a walk with his wife.

他和他夫人散步时突然想个绝妙的主意。

In course of sinking the well-shaft they came upon a deposit of a very rare mineral.

他们在凿井的过程中, 发现处稀有矿物矿床。