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1·They were meditating revenge.

他们在谋划进行报复。《牛津词典》

2·These injuries were avoidable.

这些伤病本是可以避免的。《柯林斯英汉双解大词典》

3·Her parents were Albanian.

她的父母是阿尔巴尼亚人。《柯林斯英汉双解大词典》

4·The doors were padlocked.

门都用挂锁锁着。《牛津词典》

5·They were Unitarians.

他们是上帝一位论者。《柯林斯英汉双解大词典》

6·The roads were icy.

道路都结冰了。《柯林斯英汉双解大词典》

7·Changes were afoot.

各种变革正在进行之中。《牛津词典》

8·They were sneeringly dismissive.

他们态度轻蔑，不屑一顾。《柯林斯英汉双解大词典》

9·Her injuries were horrific.

她的伤势极为严重。《牛津词典》

10·They were hopelessly lost.

他们彻底失败了。《牛津词典》

是

1·His eyes were a watery blue.

他的眼睛是淡蓝色的。《牛津词典》

2·I suspect they were right.

我觉得他们是正确的。《柯林斯英汉双解大词典》

3·Prices were predictably high.

价格高昂是意料中的事。《牛津词典》

4·We were the only people there.

我们是唯一在场的人。《牛津词典》

5·His efforts were to no avail.

他的努力是徒劳的。《柯林斯英汉双解大词典》

在

1·A few tourists were buzzing around.

几名游客在匆忙地跑来跑去。《柯林斯英汉双解大词典》

2·They were mining for gold.

他们在开采黄金。《牛津词典》

3·They were meditating revenge.

他们在谋划进行报复。《牛津词典》

4·We were guided around the museums.

我们在导游的带领下参观了博物馆。《牛津词典》

5·I thought you were mocking me.

我以为你在嘲笑我。《柯林斯英汉双解大词典》

曾是

1·They were bosom buddies.

他们曾是知心的伙伴。《柯林斯英汉双解大词典》

2·They were savage and bloodthirsty.

他们曾是野蛮而血腥的。《柯林斯英汉双解大词典》

3·Coal and steel were the region's lifeblood.

煤炭和钢铁曾是这个地区的生命线。《柯林斯英汉双解大词典》

4·The Spice Islands were within the Spanish domains.

香料群岛曾是西班牙的领地。《牛津词典》

5·Derek and I are close; we were roommates for two years.

德里克和我关系密切，我们曾是两年的室友。《柯林斯英汉双解大词典》

(1)if i were you如果我是你的话

(1)as it were可以说是，似乎就是；好像

(1)were it not for（与事实相对的假定）若不是…的话