🧩 词语组成解析
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['bækˌʌp]
n. 支持，后援;阻塞;<计>备份文件;[乐]伴奏;
adj. 备用的，后补的;支持性的;伴奏的;
🗣️ 情景例句
Hello. Is Susan there?
喂，是苏珊吗？
The heart of the giver makes the gift dear and precious.
赠予者的心意可使馈赠的东西增加价值而显得珍贵。
If a shop assistant told him she had not heard of it, he would pretend to be considerably put out.
要是女售货员告诉他从未听说过这些东西，他会装出十分遗憾和不安的样子。