But even mulch has its limits. Natural resource specialists point out that weeds can be transported in mulch. This is also true of soil, grain, hay and animals.

但是，地膜也有其局限性。自然资源专家指出，杂草可以在地膜里传播，还可以通过土壤，谷物，干草和动物传播。

youdao

Ochkhuu helped Norvoo's father, Jaya, cut hay for eight hours, and by Sunday night they had moved enough hay to the barn to keep his animals alive through the winter, even a dzud.

奥奇古花了八个小时帮诺乌的爸爸伽雅收割干草，到周日晚上，他们已经往谷仓里搬运了足够的干草，这样即便是暴风雪过来，动物们也能有得吃。

youdao

Wearing green coveralls and a tan hat, Morse stands outside his barn watching his 17-year-old son Noah drive a feed wagon down a row of cattle while the animals feast on corn and hay.

穿着绿色连体工作服，戴着棕褐色宽边帽的Morse站在自己家的谷仓门口，看着17岁的儿子Noah开着一辆饲料添料车为一排正在吃玉米和干草的牛群添加饲料。

youdao

This is also true of soil,grain, hay and animals.

VOA: special.2010.08.10

They've been able to absorb the extra costs of shipping in hay and sending their animals to feed lots, but for smaller farms and ranchers that experienced large fires, the situation is less optimistic.

NPR: Cattle Ranchers Struggle to Survive Amid Wildfires

In the pastoral sector, the services that the negdel provided for herders under socialism the regulation of access to pastures, the upkeep of wells for watering animals, the provision of winter hay, a collective truck for transport to fresh seasonal pastures, and much more collapsed, and little replaced them.

ECONOMIST: Nomadism in Mongolia