It's commonly referred to as salted Japanese plums but they're closer to apricots actually.
它通常被称为盐渍日本李子,但实际上它们更接近杏子。
英语百科
Japanese plum
Japanese plum or correctly Japanese Medlar are the edible fruits of the Loquat, an evergreen shrub. The fruits have yellow skin with light yellow flesh resembling in shape and size similar to plums. However not plums at all, the medlars have larger two or more brown seeds, unlike the plum that has just one seed, smaller in size about that of half.