Cats miaow when they are unhappy, purr when they are happy.

Cats positively revel in heat, whether natural or man-made.

猫确实喜暖，不管是自然的还是人工创造的温暖环境。

Two cats or more in one house will also exhibit territorial behaviour.

一家若有两只或更多的猫，也会表现出争夺地盘的行为。

We saw two more wild cats creeping towards us in the darkness.

我们看见又有两只野猫在黑暗中悄悄向我们靠近。

We're going on a picnic tomorrow.

我们明天去野餐。

They thoughtlessly planned a picnic without him.

他们太粗心，安排野餐竟然没有带上他。

He kindly carried our picnic in a rucksack.

他很体贴地背着装有我们野餐食物的背包。

They were tidying up the remains of their picnic.

他们正在收拾野餐后剩下的东西。

The weather was perfect for a picnic, he told himself, but the thought did nothing to cheer him.

他告诉自己，那样的天气出去野餐再合适不过了，可是，这丝毫不能让他提起精神来。

Emigrating is no picnic.

移民不是件轻松的事。

Heavy rain frustrated out our plans for a picnic.

大雨使我们的野餐计划无法实现.

Plans for the picnic are still up in the air since we can't decide where to go.

由于我们不能决定去哪儿,野餐计划还未定.

Those black clouds look ominous for our picnic.

那些乌云对我们的野餐来说是个不祥之兆.

They decided against a picnic in the park.

他们决定不去公园野餐了.

We didn't have the picnic because the weather was uncertain.

我们没有出去野餐,因为天气变幻莫测.

There are some apples in a picnic hamper.

在野餐用的大篮子里有许多苹果.

Rocks and stumps supplied the place of chairs at the picnic.

野餐时石头和树桩都充当了椅子.

We had lots of fun at the picnic.

我们在这次野餐中玩得很痛快.

We did not figure on having so many people at the picnic.

我们没有料到会有这么多人参加野餐.

The territory was too expensive for any purchaser, so the two couples parceled out a picnic lunch.

这地方什么都贵, 因此,两对夫妇分享一顿野餐.

Our plans for a picnic were thwarted by the rain.

我们的野餐计划因雨受挫.