它会毫无先兆的发生.It can happen without warning.偏头痛发作, 尤其是有先兆的偏头痛, 是主要的预测因素.The presence of migraine attacks, especially migraine with aura , was the major predictor for these associations.有先兆的偏头痛比无先兆偏头痛具有和精神障碍更强的相关性.The associa...
...the clang of lances striking armour.长矛撞击盔甲发出的咣咣声The iron gate was pulled to with a clang.铁门哗的一声拉上了.He pulled the gates to with a clang.他把大门咣当一声带上了。It gave a metallic clang, like a cracked bell.它发出了金属碰击般的哐啷声，跟破钟似的。...
Make method and cardinal principle of cloth cover rubber overshoes are same.制做方法与布面胶鞋大体相同.Leather overshoes were put on the horses' hooves to stop them marking the turf...马蹄上套了皮套子，以免弄脏赛马场。Leather overshoes were put ...