不定用英语怎么说？

不定

例句

• the unsteady light of a candle 闪烁不定的烛光
• He has knocked about quite a bit. 他经历过很多漂泊不定的生活。
• Phil walked forward confidently but something held Ben back. 菲尔信心十足地走向前去,本却踌躇不定。
• The bridge wobbles. 这座桥摇摆不定。
• Such parents vacillate between saying no and giving in—but neither response seems satisfactory to them. 这类家长举棋不定，对孩子们的无理要求，不知道是该回绝还是该满足，觉得这两者都不理想。
• We hesitated at the propriety of the method. 我们对这种办法是否适用拿不定主意。
• He has been very restless all day and he awoke nearly all last night. 他一整天都心神不定, 昨夜几乎一整夜没有合眼。
• I wandered lonely like a cloud. 我像一朵浮云般漂浮不定。
• He visits us at irregular intervals. 他不定期地来探访我们。
• The breeze flared the candle. 微风吹得烛光摇曳不定。