influx：the arrival of large numbers of people or large amounts of money, goods etc, especially suddenly

大量涌入“人，资金，商品”，常与great/massive/huge搭配使用

例句：European countries have been troubled in recent years as to how to handle a great influx of refugees from the Middle East.

造句：Trump is planning to built a wall between America and Mexico to avoid the great influx of refugees.

例句：When North Korea opens up to the outside world one day, there will be an influx of goods, technology, and capital.

造句：There was an influx of goods，technology，and capital during the opening-up period.

翻译：Every summer vacation，there is a huge influx of tourists from all over the world in Beijing.