“在后面”的英语可以翻译为：earwards，back ...

他们惬意地躺在沙发上，胳膊搭在后面。They sprawl at ease across the sofa, arms draped over the back.尤妮斯穿着浅绿色的衣服站在后面不起眼的地方。In the background, dressed in pale green, stood Eunice.我们将被全世界甩在后面。We're going to be left behind by the rest of ...