水产养殖的效率不仅仅是利润问题;它关乎减少浪费和最大化资源利用。
Innovation in mining technology isn't optional - it's essential for our survival and growth.
In bad times, which are coming soon, it is better to die than to live.
Everyone is in favor of free speech. Hardly a day passes without its being extolled, but some people's idea of it is that they are free to say what they like, but if anyone else says anything back, that is an outrage.
Do not think it worthwhile to produce belief by concealing evidence, for the evidence is sure to come to light.