Keep the box in an upright position.
把盒子竖着放。
Keep upper body upright, loose waist.
上体保持正直, 松腰。
The tug nearly turned turtle twice, but I managed to keep her upright.
拖船两次都差点翻个儿，但我设法稳住了船身。
Keep your head upright, shoulders horizontal, chest broad, back straight.
头容正, 肩容平, 胸容宽, 背容直。
Please keep your seat belt fastened and put your seat in the upright position.
请系牢安全带，并使坐椅直立。
Please keep your seat belt fastened and keep your seat in the upright position.
请系好安全带，并直立您的座椅背。
The muscles that keep the pelvis upright, like a bowl, are located front and back.
使骨盆像碗一样保持端正的肌肉位于骨盆的前侧和后侧。
If you would kindly please to let me keep upright, sir, perhaps I shouldn't be sick.
先生，请你行行好，让我直起身子来，免得恶心反胃。
Try to keep your body upright, but slightly tilting forward so you do not arch your back.
尽量保持身体直立，但是稍微向前倾斜，因此你不用拱起背。
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