noun 下载 🔗分享 屁股，臀部 (usually in the plural) Each of the two large fleshy halves of the posterior part of the body between the base of the back, the perineum and the top of the legs. Examples : "After sitting for hours in class, my buttocks started to feel sore. " 在课堂上坐了几个小时后，我的屁股开始觉得疼了。 body anatomy physiology organ part human sex 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 船尾，船底后部 The convexity of a ship behind, under the stern. Examples : "The sleek lines of the racing yacht curved gracefully, especially in the buttocks, where the hull swelled before meeting the stern. " 那艘赛艇流畅的线条优美地弯曲着，尤其是在船尾底部，船体在那里膨胀起来，然后与船尾相接。 nautical part vehicle sailing 与AI对话词汇游戏阅读练习
