Kollag
固体润滑剂
🗣️ 情景例句
just half a mile down the road from the Watermill.
从Watermill往下走只要半英哩。
A burden of one's choice is not felt.
自己选的担子不嫌重。
Before he retired, Frank was the head of a very large business company, but as a boy he used to work in a small shop.
在退休前，弗兰克是一家非常大的商业公司的经理，但他小时候却在一家小铺里做工。