We draw them as sine waves, as if something's going back and forth or up and down.

我们把它们画成正弦波，就好像有东西在前后或上下运动。

And in most places, you can only find it in stores around Christmas.

在大多数地方只能在圣诞节前后在商店里找到它。

Ultimately huangjiu becomes baijiu around the Ming dynasty and was called shaojiu or burnt wine.

最后黄酒在明朝前后成为白酒，被称为烧酒。

I do! It's often said around New Year.

是的！人们常在新年前后说这句话。

We ask women to use tenofovir in a gel formulation before and after sex.

我们要求女性在性交前后使用凝胶配方的替诺福韦。

The results are then stuck on the front and rear body panels.

然后打印好的成品会被贴在车身前后部位。

I think that that's a really great thing to use before and after a run.

我认为这是一个非常好的在跑步前后使用的东西。

Statistics do show a consistent rise in crime rates around a full moon.

数据的确显示，在满月前后，犯罪率会持续上升。

There are many phases to staying safe around lightning.

在闪电发生前后，保持安全有许多步骤。

Here are steps you can take before and after your phone goes missing.

以下是你可以在手机丢失前后采取的步骤。

In front of him, behind, above, below - he seemed surrounded by staring eyes.

在他前后左右，上上下下，似乎有无数双瞪大的眼睛包围着他。

Winky began to rock backward and forward on the ground, her breath coming in sharp bursts.

闪闪开始在地上前后摇晃，她的呼吸不时被强烈的抽泣打断了。

The researchers also did brain scans of those who behaved most altruistically, before and after training.

在训练前后，研究人员分别扫描了那些表现得最无私的受试者的大脑。

The scientists measured concentrations of the stress hormones in the students' saliva before and after the talk.

科家们在演讲前后测量了生唾液中压力荷尔蒙的浓度。

And around Easter, one of our number will leave us for ever.”

在复活节前后，我们之中会有一个人永远离开大家。”

Oh, honey. Is that because your mom died around Christmas?

亲爱的，这是因为 你母亲在圣诞节前后过世吗？

Indian Corn shows up around Thanksgiving with a brown stripe instead of yellow.

印度玉米在感恩节前后出现，上面是棕色条纹，而不是黄色。

And they have the blemish both front and rear from a facet where the opposite tooth interlocked with it.

在牙齿前后的齿面都有缺陷就是与对面牙齿相交错的地方。

It is not a Christmas movie, but it does take place leading up to Christmas time.

它不是圣诞电影，但它确实发生在圣诞节前后。

Bosch married Alit Vandermeerven, a wealthy old woman around 1480.

博世在1480年前后与一位富有的老妇人阿里特·范德米尔文结婚。