It's a pulsating star that swells and shrinks periodically.

颗脉动的恒星，周性地膨胀和收缩。

Many Buddhists eschew it periodically to instil compassion, foster progress towards enlightenment and improve their chances of a favourable rebirth.

许多佛教徒定不吃肉，以培养慈悲心怀，促进他们走向开悟，并提高他们涅槃的机。

From that time he became periodically ill.

从那时候起, 他就定地生病。

Lemmings periodically commit mass suicide, and no one knows just why!

旅鼠周性地进行大规模自杀，但没人知道究竟为什么！

Since there is no global ocean, rivers and lakes periodically dry out.

由于没有全球海洋，河流和湖泊定干涸。

Deliveries of fresh food such as fruit happen periodically throughout the year.

像水果这样的新鲜食品都全年定送货的。

So, in order to rectify this, we have to periodically add an extra day to the calendar.

所以，为了纠这误差，我们必须定在日历上额外增加天。

We are now seeing that in fact Mars probably does have water – not liquid water – that there is ice just below the surface and there's even just recently tantalizing evidence that perhaps water does flow periodically...

我们现在看到火星上或许真的有水存在——不液态水——但在地面以下存在着冰，最近甚至有迷惑性很高的证据表明这些地下水或许有周地流动。

STEP 2 Launder your bra in a machine periodically. Close the clasp, fold the cups together, place it in a lingerie bag, and wash it in cold on the gentle cycle.

定用洗衣机洗涤内衣。扣上扣环，将罩杯折叠在起，放在内衣袋中，用最温和的程序冷水洗涤。

The pleasure even of one's lover may become boring periodically.

但甚至来自爱的欢乐也定变得无聊。

I would, you know, meet periodically famous people or people that were very wealthy.

我定名人或非常富有的人。

Maybe having a door mat that you can clean periodically.

也许有个定清洁的门垫有所帮助。

California is riddled with geological fault lines that periodically ruptures the biggest.

加州到处都周性断裂的地质断裂带。

We'll be looking at various, innovative energy efforts periodically, starting with one underway in Scotland.

我们在周性地关注能源领域各种创新性的努力，从苏格兰在进行的个能源工作开始。

Also, be sure to change your password periodically.

而且，还要定更改你的密码。

They enjoyed their midnight meal so much that they determined then and there to form a club and have such entertainments periodically.

他们很喜欢这次宵夜，于当场决定成立个俱乐部，定举办这样的活动。

So those are gonna start to come out, the stadiums we're gonna do are gonna come out, you know just kind of periodically through out the year.

所以计划开始实施, 我们进入体育场馆，你知道的，今年定在那里演出。

From there, stopping periodically to eat some edible berries, we struggled behind our cousins through the heavily brush and shrub covered footpaths to Black Duck Cove to visit the cemetery where our grandmother, whom we never knew, was buried.

从那里开始，我们时不时地停下来吃些可食用的浆果，我们在堂兄弟姐妹身后艰难地穿过浓密的灌木丛和灌木覆盖的人行道，来到黑鸭湾，参观埋葬我们素不相识的祖母的墓地。

The Robo3000's have to periodically communicate with the Robo5000 to see if an update is worth getting; they have to determine whether the benefits of an update outweigh the loss in production.

机器人 3000 也必须定与机器人 5000 通信，看否有值得进行更新；们必须评定更新的益处否大于生产上的损失。

So for six months, he periodically would look up and say, " Sonia, did you get the application? " And I'd say, " David, I told you, it's useless."

所以在六个月的时间里，他时不时地抬头问，“索尼娅，你收到申请了吗？”我说，“大卫，我告诉过你，这没用的。”