The past continuous is used to describe actions that were in progress at a past time.

过去进行时用于描述过去时间正在进行的动作。

We can use it to talk about actions that were in progress at a specific time in the past, so here it's 2 years ago.

我们可以用它来谈论在过去某个特定时间正在进行的行为，比如这是两年前。

While these hasty actions were in progress here, Venn and Thomasin had been toiling through the lower corner of the heath in the direction of the light.

他们在这儿紧张行动的同时，维恩和托玛茜正在荒原低地的那一角朝亮光方向走去。

United States envoy for Sudan Tom Perriello said on Monday peace talks were in progress in Switzerland days after the announcement of the reopening of the country's Adre crossing with Chad.

美国苏丹问题特使Tom Perriello周一表示，在瑞士宣布重新开放与乍得的阿德雷过境点几天后，和平谈判正在瑞士进行。

Fagin, troubled by no grave emotions, looked eagerly from face to face while these proceedings were in progress; but apparently without meeting that of which he was in search.

费金并没有受到任何严重情绪的困扰，在这些程序进行的过程中，他急切地看着一张张脸。但显然没有遇到他正在寻找的东西。

But he was often talked at, while they were in progress, by reason of Mrs. Joe's perceiving that he was not favorable to my being taken from the forge.

但是，在他们进行中，由于乔夫人认为他不利于我被从锻造中带走，他经常被谈论。

Two games of billiards were in progress. The waiters were crying out the scores. The players ran round the tables encumbered by spectators. Clouds of tobacco smoke came from everybody's mouth, and enveloped them in a blue haze.

正在进行两场台球比赛。服务员在喊分数。球员们围着围满观众的桌子跑来跑去。一团团烟草烟雾从每个人的嘴里冒出来，将他们笼罩在蓝色的雾霭中。