Exercise, fresh air, and good posture are all helpful.

体育运动、新鲜空气和良好姿势都很有效果。

《柯林斯英汉双解大词典》

Good posture is essential when working at the computer.

用电脑工作时良好的姿势极其重要。

《牛津词典》

Good posture isn't just helpful for taking math exams.

好的姿势不仅对数学考试有帮助。

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"I think we're on a very good path to making a sea-change in our missile defense posture within the coming three-to-five years."

VOA: standard.2010.03.26

I think even if you're in a chair, and you're sitting up straight with good posture, maybe hands on knees.

哪怕只是坐在椅子上，坐直并保持良好姿势，也许双手放在两膝上。

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She also stresses the importance of a stand that keeps the instrument at the proper height, since good posture is essential to proper technique.

WSJ: Digital Pianos: Great Performers for Tight Spaces

Since keeping the ball stable requires abdominal strength and concentration, distracted workers may not maintain good posture or end up rolling onto the floor.

WSJ: Workstations to Help You Get Fit Have Risks Too

The wedges increased the forward tilt of the pelvis, which reduced pressure on the lower lumbar discs and the muscular effort required to maintain good posture, researchers said.

WSJ: Back Pain: Not Just for Adults