These zircons ended up in the Jack Hills rocks after eroding from rocks that were even more ancient, and the researchers painstakingly sorted the individual crystals from other bits of minerals.
这些锆石是从年代更久远的岩石上被剥蚀下来之后进入杰克山的岩石中的，研究人员费了很大力气才把这些锆石晶体从其它矿物碎片中拣选出来。
Mary said Jack was cheating on her. Jack was seeing a girl from his hometown. One day, Mary saw them holding hands and ended the relationship immediately.
玛丽说杰克背着她和别人交往。杰克和他的一个老乡一直很暧昧。一天，玛丽看见他们手牵着手，当场就和他分手了。
The single ended headphone jack will still be active BUT it will carry only single ended signal.
单端耳机插孔仍然活跃，但它只能携带单端信号。
应用推荐