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
I know somewhere you can eat Japanese food.
我知道个地方，可以吃日本菜。
We have confidence in your bamboo wares.
我们对贵方的竹制品质量充满信心。
Sorry! It's not a very good line. Could you speak more clearly, please?
对不起！电话线路不太好。你能说清楚一些吗？