Retention aid
[化] 助留剂
🧩 词语组成解析
retention
[ri'tenʃən]
n. 保留;记忆力，保持力;滞留，扣留;闭尿;
aid
[eid]
n. 帮助;助手;外援;辅助设备;
vt. 帮助;资助;救助;促进;
vi. 帮助;
🗣️ 情景例句
Tomorrow night we'll be camping out in tents.
明天晚上我们将露宿在帐蓬里。
A change of work is as good as a rest.
调换一下工作是很好的休息。
On behalf of my company, I would like to welcome you here.
我代表我们公司欢迎你来这里。