noun 下载 🔗分享 枕木，轨枕 A sleeper supporting and connecting the rails, and holding them in place. Examples : "The train rumbled over the tracks, supported by hundreds of wooden crossties that kept the rails aligned. " 火车隆隆地驶过铁轨，数百根木制枕木支撑着铁轨，并保持它们的对齐。 structure material part building vehicle industry technical 与AI对话词汇游戏阅读练习
