稀少的英文：
rare
rarely

scant attendance
稀少的出席者

When he grew bald he bought a toupee.
"他头发日渐稀少,于是买了假发。"

Because U-235 has a relatively short half-life, it is scarce today in relation to the abundant U-238
因为U235的半衰期较短，相对于U238的丰度来说，现代的U235是稀少的。

Few and far between; not very many
很少;稀少

It was sparsely wooded and desolate.
这里树木稀少，荒无人烟。

Scarcely moistened by the rains—said of drought
雨泽稀少

A profligate use of scarce resources
对稀少的资源的恣意挥霍.

scarcity value
【经济】稀少价值

A densely [sparsely] populated district
人口稠密[稀少]的地区

The thin vegetation of the plateau.
高原上稀少的草木

I will have a cheeseburger, medium rare.
我要一份起士汉堡，五分熟。

I rarely have short drinks.
我很少喝烈性酒。

Journalists are rarely admitted to the region.
新闻记者很少获准进入该地区。

Economic collapse is a rare circumstance.
经济崩溃是不太可能发生的事。

It is very rare for Jeanne to be late.
珍妮很少迟到。

I will have a cheeseburger, medium rare.
我要一份起士汉堡，五分熟。

I rarely have short drinks.
我很少喝烈性酒。

Journalists are rarely admitted to the region.
新闻记者很少获准进入该地区。

Economic collapse is a rare circumstance.
经济崩溃是不太可能发生的事。

It is very rare for Jeanne to be late.
珍妮很少迟到。