Ulvan
石莼(胶)聚糖
🗣️ 情景例句
Grandpa helped me yesterday afternoon.
昨天下午祖父帮我的忙。
The price of this model of cassette-player is 2500 Belgian francs at today's rate of exchange.
这个型号的录音机，按今天汇率，每台2500比利时法郎。
He saved money for years and in 1958 he bought a small workshop of his own.
他靠多年积蓄，于1958年买下了自己的一个小铺子。