n. 地下, 地铁, 地道, 秘密活动 a. 地下的, 秘密的 adv. 在地下, 秘密地
"We go where there are rougher conditions in terms of weather, with rough or very hot summers." In Matamorisca, they intervened in 17 barren hectares owned by the regional government and peppered them with their signature device: a biodegradable (可生物降解的) cardboard container they call the cocoon which can hold 25 litres of water underground to aid a seedling's first year.
六级 · CET-6 2026年6月 第2套
But for the Saharan silver ant, from their underground nests into the sun's brutal rays to for food, this is the perfect time to seek lunch.
四级 · CET-4 2021年6月 第1套
There's a high-tech underground trash disposal system.
四级 · CET-4 2019年12月 第3套
What is mentioned as a consequence of extracting water from deep underground?
四级 · CET-4 2018年12月 第1套
And she wouldn't have known this at the time, but the ants use the leaves to farm fungi （菌类） underground to feed their developing babies.
六级 · CET-6 2018年12月 第2套