He spent another year choosing the best pictures and placing them in a meaningful order.
VOA: special.2009.03.23
In fact, that's their preferred state is suspended in a fluid where nutrients are widely available to them, and where they can swim from one spot to another in order to get the nutrients they need, or in order to run away from toxic compounds.
事实上,细菌更喜欢生活在,营养丰富易得的悬浮液中,它们可以从一个点游动到另一点,以获取所需营养,或逃离有毒物质
In another example, you can use a "when" question in order to ask about the timing of a specific event.
在下面这个例子中,你可以用When 问句来询问一个具体活动的时间。
应用推荐