Pre-Sinian

常见例句

The Lower Yangtze region containing a pre Sinian metamorphic basement, has entered an episode of intraplate evolution since the Sinian.
下扬子具有前震旦系变质基底，自震旦纪进入板内演化。
Cook the pie for 20 minutes in a pre heated oven.
在经过预热的烤箱里烘烤馅饼20分钟.
The pre - christmas period be always very busy .
圣诞节前这一段时间总是很繁忙的。
Just pre the switch on your arm rest.
您按一下扶手上的那个开关就行了。
They are well pre pared and never improvise.
他们总是有备而来，从不临时草率从事。
Q: Do you work well under stre or pre ure?
在压力下你能正常工作吗?