收缩缺陷包括敞开性缩孔、二次缩孔以及轴线缩孔。

The shrinkage defects include primary piping, secondary piping, and centreline shrinkage.

youdao

我们当然需要知道自己在人生中将要去向何处。但是我们仍然需要对新的可能性敞开心怀。

We certainly need to know where we are going in life, but we also need to remain open to new possibilities.

youdao

它首次向一位非洲裔美国人敞开了白宫椭圆形办公室的大门，而且，在实现这一创举的全国性投票中，他的种族背景似乎已是一个相对次要的因素。

It opened the door to the Oval Office to an African-American for the first time, and did so with a national vote in which his race seems to have been a relatively minor factor.

youdao