Vitamin C is supposed to prevent colds.

维生素C可以预防感冒。

They suppose the box to contain books.

他们箱子里是书。

Foxes are supposed to be wily creatures.

据说狐狸是狡猾动物。

Eating spinach is supposed to make you strong.

据说吃菠菜能使人强壮。

Let's suppose (that) the news is true.

让我们假定消息是真。

You’re not supposed to walk on the grass.

不准践踏草坪。

Supposing he is not at home, what then?

假如他不在家,那怎么办?

I suppose I shouldn't be so sensitive.

我我不该么怒。

I should suppose him to be about twenty.

我他是二十岁左右。

I'm quite a good actress, I suppose.

我我可能是个相当不错女演员。

Supposing it rains what shall you do?

假使下雨，你会怎么办呢？

I suppose it could all be a cod.

我可能完全是个恶作剧。

The supposed prince was really a beggar in disguise.

那个被信以为真王子, 原来是个乞丐。

Supposing we're right, what should we do?

假设我们是正确，我们应怎么办?

She’s supposed to do an hour’s homework every evening.

她应当每晚做一个小时家庭作业。

The LCD will be much cheaper in the short run, I suppose.

我, 要不了多久液晶荧幕就更加便宜了。

You are only supposing this on hearsay, you have no proof.

你只是根据传闻像而已, 并没有证据。

I suppose that you suspect me of pseudo-intellectual flimflam.

我你怀疑我是在冒充有知识胡说瞎扯。

We’re not supposed to be at the party for an hour yet.

我们在晚会上呆了应该还不到一个小时。

Sing up,fellows,this is supposed to be a celebration,not a funeral!

伙计们,大声唱,是开庆祝会,不是送葬!