keep straight的例句大全

Why do you keep a straight face?

你干麻板著一张脸?

Effectiveness of quantitative formula: Taking logarithm value of cDNA dilution power as X-axis, Δ Ct of relative objective gene and house-keeping gene as Y-axis, the slope of straight line was 0.084 with the 2-ΔΔ Q formula.

定量计算公式的有效性：以cDNA稀释倍数对数值为X轴，以相应目的基因和看家基因的ΔCt为Y轴得到直线的斜率为0.084，可以应用公式2-ΔΔQ。

What went through Tom's mind I can't imagine, but he did manage to keep a straight face

不知道汤姆想到了啥，但他确实忍住没笑。

Move onto your hands and knees, extend one leg with the weight on the ball of your foot, lift your other leg off the ground and rest it on the back of your heel. Keep your leg straight and push your heel to the floor-feeling the stretch on your calf muscle.

两手和两只脚脚尖着地，将一只脚放在另一只脚的脚后跟上，然后保持支撑腿伸直，试着使脚跟着地，能明显感觉到小腿肌肉的拉伸。

Keep it straight and jagged with sharp edges.

保持笔直的锋利的锯齿。

So stand up straight and keep your back and stomach muscles taut.

因为你腰部周围的肌肉群同时也支撑你的的脊柱，因此站直了，就能保持你的背部和腹部肌肉紧凑。

Keep elbow straight in front and curl trunk upward toward opposite knee, lifting shoulder blade from floor.

肘关节伸直，卷起胸部朝向对侧膝关节。

Dont keep a straight face.

别板着脸吓唬我。

She couldn't trust herself to keep a straight face.

她没有把握自己会保持严肃的表情。

I don't know how I managed to keep a straight face.

我不知道怎么才能保持不动声色。

How Henry managed to keep a straight face, I'll never know.

亨利怎么能一本正经地板着面孔，我永远也不会明白。

The sight that met my eyes made it hard to keep a straight face.

映入眼帘的情景使我难以板起面孔。

Nonsense! How can you say that and keep a straight face?

胡说八道！你怎能不动声色说那些话呢？

It was hard to keep a straight face while I answered their questions.

回答他们的问题时，真叫我忍俊不禁。

Stop joking around. I'm trying to keep a straight face.

别闹了，我正试着要板着面孔。

I can never play jokes on people because I can't keep a straight face.

我从来不能和人开玩笑，因为我不能保持严肃的表情。

It was difficult to keep a straight face when he fell over the dog.

当他绊着狗摔了一跤时，大家很难扳着脸不笑。

They tend to keep a straight face all day long and fail to keep life in perspective.

他们终日拉长著脸，且无法以正确的眼光观照人生。

If you see Wayne Rooney out on the streets make sure you send him straight home? Everton FC coach David Moyes asks the club's fans to help keep wonder boy Wayne Rooney out of trouble.

如果你在街上看到韦恩-鲁尼，请务必送他直接回家&埃弗顿队教练大卫-莫耶斯呼吁埃弗顿球迷帮助天才少年韦恩-鲁尼远离麻烦。

Keep going straight and turn at the first stoplight.

一直往前走，在第一个红绿灯的地方转弯。