我正一步步赶上其他运动员。
我正在这样做，因为就像氯化钠那样一正一负。
I am doing this for plus one minus one like sodium chloride.
,最大值，为正一,最小值，为负一，因此振幅显示这是。
the highest value is plus one and the lowest value is minus one, so the amplitude indicates that is...
其中有一个非常重要的地方需要注意，不是硼，而是正一价硼离子，因为我们已经拿走了一个电子了。
so it's important to note that it's not in b, now we're talking about b plus, because we've already taken an electron out here.
那么让我们来想一想，拿走一个，2,s，电子所消耗的能量，假设一个是从正一价硼离子中拿走1，另一个是从中性硼原子中拿走。
So let's think about the energy required now to remove a 2 s electron, let's say we're removing it from boron plus 1 versus neutral boron.
一方面德赛尔在他的论文中作了解释，另一方面斯宾塞在实地气候网站上以《“对云层辐射说”的回应》为题对此作了批判，这一正一反拍成了题为《长处》与《短处》两个视频，以期解释众惑。
Dessler has amplified on his paper, and Spencer's critique, on RealClimate.org in a piece titled "Feedback on Cloud Feedback" and has created two videos, one short and one long, that explain the work.
该机场正由一建筑集团私家资助。
The airport is being privately funded by a construction group.
他们正爬上一条狭窄的山路。
一个轮床上的男子正由一个护理员推送。
我看见一个人正冲着一个司机大喊，那个司机的车挡住了街道。
I saw a man shouting at a driver whose car was blocking the street.
他用两个手指对着自己的脑袋，仿佛正拿着一把枪。
He points two fingers at his head, as if he were holding a gun.
对今天的政治家而言，该条约正成为一大包袱。
For today's politicians, the treaty is becoming a millstone.
他那时正独自坐着，抽着一根大雪茄。
我正设法召集一帮人过周六呢。
一群人正站在一起豪饮啤酒。
有一根柱子正挡着我的视线，所以我只能看见舞台的一半。
There was a column directly in my line of sight, so I could only see half the stage.
我低头一看，我正站在一堆粪便旁边。
他正拿着一份报纸。
他正抽着一支大雪茄。
她正计划孩子一入学就恢复上班。
She's planning to return to work once the children start school.
他正沿着一条崎岖小路穿过树林。
他正把一张光盘放入光盘播放器中。
我那时正接近一个朝山下向左急转的弯道。
I was approaching a fairly sharp bend that swept downhill to the left.
这块地正由一家法国公司开发利用。
危机正进入一个至关重要的决定性阶段。
他们正计划向一些机构募集资金。
They were planning to solicit funds from a number of organizations.
我跑得如此快，正计划参加一些比赛。
我正就这一课题进行研究。
他们正挤在一起，几乎踩着彼此的脚跟。
They were bunching up, almost stepping on each other's heels.
他们正邀请一些有才华但未得到肯定的导演提交他们的样片。
They are inviting talented but unheralded movie-makers to submit examples of their work.
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