毛远志有几个子女:高手，请谈谈你对这四个词组的理解

at a time: 每次,一次
例句与用法:
1. Female sheep produce one or two lambs at a time.
母羊一次生一到两只羊羔。
2. He tossed the peanuts into his mouth one at a time.
他每次将一粒花生扔进嘴里。
3. If only problems would come one at a time!
要是问题一次只发生一个该多好！
4. He used to abandon his work for months at a time.
他过去每次放下工作就是几个月。
5. Such waste of money should be deprecated at a time like this.
在这种时候应大力反对如此浪费金钱。
6. Personal enmities must be forgotten at a time of national crisis.
民族危机当头, 必须捐弃个人恩怨.

have access to: vt. 可以到达(可以使用)
例句与用法:
1. I have access to his office.
我可以进出他的办公室。
2. Students must have access to good books.
学生必须有机会读到好书。
3. As her private secretary he have access to all her correspondence.
他是她的私人秘书，能接触到她所有的信件。

get across: vi. 通过(渡过,被人了解)
例句与用法:
1. He's not very good at getting his ideas across.
他不善於表达思想.
2. Your meaning didn't really get across.
你的意思别人并未真正理解.
3. The bridge was destroyed so we couldn't get across (ie cross) the river.
桥已毁坏, 我们无法过河.
4. The bridge was blown up, so we couldn't get across.
桥被炸毁了，所以我们无法过去。

It occurs to…that：想起,想到
occur to sb.: 想起,想到
occur to: vt. 想起
例句与用法:
1. Didn't it occur to you that he was lying?
你当时没想到他在撒谎吗？
2. A good idea suddenly occurred to me.
我忽然想起一个好主意。
3. Did it ever occur to you to be betrayed by your best friend?
你可曾想到被你最好的朋友出卖？
4. It occurs to me that he might be interested in the problem we had discussed.
我想起来了他也许对我们讨论过的那个问题感兴趣。
5. Does it ever occur to you to use your sight to see into the inner nature of a friend or acquaintance?
你曾否想到用你的视觉去探视一位朋友或认识的人的内在本性？
6. Did it ever occur to you that...? ie Did you ever think that...?
你可曾想到...?

1. 每次;一次
Take three pills at a time.
每次服三粒。
2. 有...的机会，权利，方法
Don't worry.You can easily have access to him.
别担心，你很容易接近他。
3.使...被理解
I couldn't get my point across in the debate.
在辩论中我无法清楚地表明自己的观点。
4.想起,想到,浮现
It occurred to me to visit my teacher.
我想到要去看看我的老师。