what does this sign mean on the wall?为什么on the wall在前面,而mean

what does this sign mean on the wall?为什么on the wall在前面,而mean the sign on the wall _( mean)'no parking. what do the signs——（mean）?the sign on the wall——（mean）“dange what does "off the wall" mean? what___the sign on the wall ___ [mean]? ----it ___[mean] you What does the sign on the wall means?改错 what does the sign mean. What does the sign on the wall stand for?同义句 This signs on the wall ----(mean) you must obey them. 还是动词me what does this sign mean? what does the sign mean咋回答 What does the sign mean in English?