一股寒流侵袭了欧洲。

A cold front swept over Europe.

Extreme cold covered Europe.

A cold snap spread across Europe.

Source: Tatoeba

Sentence Composition

1 一股 yīgǔ a clump of; a bunch of
2 寒流 hánliú
  1. cold air current
  2. cold ocean current
  3. cold stream
3 侵袭 qīnxí
  1. to invade
  2. to assail
  3. onslaught
=4 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=4 了 liǎo
  1. to finish
  2. (used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
  3. (literary) (usually followed by a negative such as 無 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 瞭 liǎo)
=4 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=4 了 liào unofficial variant of 瞭 liào
5 欧洲 Ōuzhōu Europe (abbr. for 歐羅巴洲 Ōuluóbā Zhōu)