fall upon

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词形变化

fallen upon falling upon falls upon 三单 falls upon fell upon falling upon 现在分词 fell upon 过去式 fallen upon 过去式 fallen upon 过去分词

fall on

1.

To experience; to suffer.

With the rise of the Internet, some media fell upon hard times.
2.

To occur at some particular point in time.
3.

To set upon; to attack suddenly; to invade.
4.

To happen upon, find.

动词