Hold-backs
(hold-back 的复数) [化] (蒸馏时轻馏分被重馏分)滞留
🧩 词语组成解析
hold
[həuld]
vt. 拿住，握住;保留，保存;扣留，拘押;容纳;
vi. 拿住，握住;同意，赞成;保持不变;有效;
n. 握住;保留;控制;
n. 后背, 脊背；后卫（back的复数形式）
🗣️ 情景例句
that you care about us.
关心我们大家。
She's free on Friday and Saturday.
她周五和周六有空。
Please come in and sit down. But come to school earlier next time.
但下次要早点到校。