versant

这片山坡的南侧终年沐浴在阳光之下。

The southern ___versant of the hill is bathed in sunlight all year round.

她长期潜心研究古代手稿，每天都在档案馆工作。

She has long been ___versant in the study of ancient manuscripts, working in the archives every day.

登山者沿着陡峭的山坡艰难地向上攀爬。

The climbers struggled up the steep ___versant of the mountain.