Weismann
魏斯曼(August, 1834-1914德国生物学家)
🗣️ 情景例句
Thanks, John. You really go out of the way to make me feel welcome. Thanks you very much.
约翰，谢谢你。你真是煞费心思来让我感受到欢迎。谢谢你！
It hurts right here.
就这儿疼。
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。