Maintaining
[化] 维护; 保养
✅ 同义词
🗣️ 情景例句
Hi.
嗨，
Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子应是最经济的尺码，这些瓶子可免费保存两个月。
Today we have two new students. Their names are Lucy and Lily.
今天我们班来了两位新同学，他们的名字叫Lucy和Lily。