Scientists are becoming increasingly unsure of the validity of this technique.
科学家们越来越拿不准这一技术是否正当合法。
来源:《柯林斯高阶英汉双解学习词典》It's not certain they'll accept the Front's candidate if he wins.
即便来自阵线的候选人获胜,他们能否接受他还说不准。
来源:《柯林斯高阶英汉双解学习词典》No pedestrian crossing, must go straight through, not in the vehicle when approaching a crossing.
没有人行横道的, 须直行通过, 不准在车辆临近时突然横穿.
来源:网络文摘精选In quantum mechanics an auxiliary integral is often introduced to prove uncertainty principle.
在量子力学中,为证明测不准关系式,常引入辅助积分.
来源:网络文摘精选
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