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

Thanks for your kind suggestion. but my agency asked me to rematch an American family. oT hay said some APs failed on this point in the past.

谢谢你的建议，我也不知道，现在中介要求我重新匹配家庭，我的去啊，中介说以前就有AP因为华人家庭被拒。

youdao

Typical agreements only apply for three years, at which point the vendor is free to make hay with your idea, if you haven't managed to secure a patent by then.

FORBES: Protect Your Prototype

"From my point of view it's unlikely that I'll be involved at the club, " Hay told BBC Sport on Saturday.

BBC: Livi manager Davie Hay