An influx is a large number of people, or a large amount of money or goods, arriving in one place, especially all of a sudden. You might hear of an influx of tourists in July, an influx of workers into a city, or an influx of cash into a company. The picture is of something flowing in, like water through a gate.

An influxinflux（湧入） is a large number of people是大量的人 or a large amount of money or goods或大量的金錢或貨物 arriving in one place一下子湧進某個地方 especially all of a sudden尤其是突然之間 You might hear of an influx of tourists in July你可能會聽到七月觀光客湧入 an influx of workers into a city工人湧入城市 or an influx of cash into a company或資金湧入一家公司 The pictureinflux給人的畫面 is of something flowing in是有東西流進來 like water through a gate就像水從閘門流進來一樣

It is a news and report word — a little formal.

It is它是 a news and report word一個新聞、報導常用的詞 a little formal帶點正式感

Though actually, influx by itself does not say whether the arrival is welcome. An influx of cheap imports may worry factories; an influx of aid money may be good news. The rest of the sentence carries the feeling.

Though actually不過其實 influx by itself光是influx這個字本身 does not say whether the arrival is welcome並不會說這樣的到來是不是受歡迎的 An influx of cheap imports廉價進口品的湧入 may worry factories可能會讓工廠擔心 an influx of aid money援助資金的湧入 may be good news可能是好消息 The rest of the sentence句子裡其他的部分 carries the feeling才會帶出這種感覺

People do not usually use it for one or two arrivals; the point is scale and suddenness.

People do not usually use it一般不會用這個字 for one or two arrivals來指一兩個人的到來 the point重點 is scale and suddenness是規模和突然性