埃尔维斯认为自己是民谣歌手。Elvis conceived of himself as a ballad singer.她教他读书,还教他唱两三首民谣, 弹着她的旧钢琴为他伴奏.She taught him to read and even to sing two or three little ballads, accompanying him on her old piano.她以震颤声唱一首古老的民谣.She quavered a...
The delimitation of stands within ecotons generally gives on difficulties.在群落交错区范围内,通常划定群落片段的边界并不太困难.The matter of delimitation needs the two countries to negotiate. It can't be decided unilaterally.划界的事还需两国商量, 并不是任...