用作嫁接的枝或芽叫砧木。
错误
暂无解析
Whoistheman____(你刚才在操场和他握手)?
Wherearethecolleaguesgoingforlunch?
Someconceptsmaybedifficulttograspchieflybecausetheymaybeunfamiliaror_____ideas,opinionswhichwealreadyhold.
Whatisthemainadvantageofradioads:（）
Therearemany___todosofortheparticipants.
