英语单词were是何意

英语单词were是何意 英语单词中的Hard是何意. if i were a boy 这是何意? 如何区分英语单词是何词性 xx learned to his astonishment that they were from North Korea.这句话里“learn to是何意? 无寿者相,是何意? PPMM是何意 惊弓之鸟”是何意? 谶语是何意? 魂牵梦萦是何意? 秋风扫落叶是何意 roof是何意 翠微是何意? 如履薄冰是何意? 珩是何意 solar是何意 化干戈为玉帛是何意? 凤凰于飞是何意?