查询词典 past

When you want to express regret about past events, you use the past perfect.

与过去完成时搭配可表示对过去事情的遗憾。

And this semester, we have learned the past tense, the past perfect tense and the future tense and so on.

这个学期，我们学到了过去时，现在完成时，过去完成时和将来时等。

The Past Perfect Tense is used to express an action or event that has already happened at a certain time in the past.

过去完成时是用来表达一个动作或者事件在过去的某个特定时间已经发生。

Practice the use of the simple past and the simple past perfect.

L14 合成带过去时及过去完成时的时间状语从句。

To introduce the use of past perfect tense to indicate the event happened before a particular time in the past.

Jodie他参加了一个大派对！到底发生了什麼事情呢？是谁在PARTY这麼伤心呢？进来看看吧！

In US English there is a preference for the regular past tense and past participle forms.

在美式英语中多用规则的过去式和过去分词的形式（dreamed、spoiled等）。

Use couldn't have + a past participle to refer to past impossibilities.

用 couldn't have +过去分词来表示过去不可能发生的事，表示一种推测。

The past simple tense and past participle of all regular verbs end in -ed .

欢迎来我的小窝，我已经在爱词霸空间安家了。

The past participles of a number of verbs have evolved into past participle adjectives in daily use.

很多动词的过去分词已经在日常使用中作为形容词来使用。

Give the past and past participle forms of the verbs.

写出动词的过去式和过去分词形式。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。