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、弃的小狗。

Shortly Tom came upon the juvenile pariah of the village.

不一会，汤碰上了村里的少年弃。

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

夫散步时突然想到了一个绝妙的主意。

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

们在凿井的过程中, 发现了一处稀有矿物矿床。