词汇	weak roof
释义	weak roof 不稳定顶板
随便看	know-that know that the pig is know that the pig is? Know that you are perfectly fine as you are knowthe know the answer Know the basics of SEO and copywriting know the bottom of everything Know the dangers of feeding poor quality feed know the drill know the extent of know the facts know the feeling Know the formula foraddressing bishops know the how and endeavour to know the why know the inside of sb know the inside story know the inside story right Know the internal power plays and relationship know their businesses know their ways around know the length of someone's foot know the meaningof know the meaning of know themselves