Half of Iapetus is so dark that it can nearly disappear when viewed from Earth.

有半边的土卫八已经暗到即使从地球观看，还是几乎消失的样子。

youdao

Half the world was dark.

一半的世界是黑暗的。

youdao

When he reached the flat by half-past five, it was still dark.

当他5点半钟回到公寓时，屋里还是黑的。

youdao

When he reached the flat by half-past five, it was still dark.

当他5点半钟回到公寓时，屋里还是黑的。

youdao