come upon 雅思托福

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

一天早上在走廊上我发现了一只营养不良、被人抛狗。

Shortly Tom came upon the juvenile pariah of the village.

不一会儿，汤碰上了村里儿。

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到了一个绝妙主意。

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

他们在凿井过程中, 发现了一处稀有矿物矿床。