【单选题】Peter and Jane begin to feel more like roommates rather than a couple. It might be a sign that their marriage is ________ trouble.
【简答题】歌曲孟庭苇的歌声的特征是:天真中带有一丝()。
【单选题】Peter and Jane begin to feel more like roommates rather than a couple. It might be a sign that their marriage is _____ trouble.