Backings
n. 支持( backing的复数形式 ); 支持者; 背衬; <美口>（独唱或独奏的）伴奏
🗣️ 情景例句
Floors one to eight are the elevators to the left.
一到八楼上下使用的电梯在左边。
A good wife and health is a man's best wealth.
贤妻和健康是男子的至宝。
it was not long before its use as the uniquely recognizable broadcasting frequency for interstellar communication was suggested.
提出把它作为星际间唯一可辨认的广播频率就为期不远了。