If you have to climb up, use a firm platform or a sturdy ladder.

如果你必须爬上去，就用一个稳固的平台或者一个结实的梯子。

《柯林斯英汉双解大词典》

youdao

The village has always maintained a sturdy independence.

这个村子始终顽强地保持着独立。

《牛津词典》

Locke is not a sturdy ally for that view.

而洛克却不是完全支持这个观点。

耶鲁公开课 - 公正课程节选

His typical American farmer, Farmer James, was of course a Pennsylvanian sturdy, probably had some German blood in him.

是一个典型美国农民,他是一个宾夕法尼亚人,强壮,也许还带有一些德国血统

耶鲁公开课 - 美国内战与重建课程节选

Golfers who dare check their bags with the airlines will appreciate a sturdy travel cover.

WSJ: What to Get a Golfer for the Holidays | Golf Journal by John Paul Newport

That's enough to win some elections, but not yet a sturdy foundation for effective government.

NPR: Let's Talk About The Risks of Undivided Government

It seemed strange that a boat like this, a sturdy, viable boat, would be unoccupied.

NEWYORKER: Max at Sea