Yet Unpredictably但仍然不可预测
unpredictably-不可预见地
change unpredictably变幻莫测
appear unpredictably出没无常
likely to perform unpredictably不规则的
unpredictably difficult in operation很可能有麻烦
to change unpredictably变幻莫测
be changing unpredictably风云变幻莫测
come and go unpredictably出没无常