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- Harden up a little, we need more speed. 把帆索拉紧一点，我们需要加快速度。
- The hard core in the party make all the decisions. 这个党的核心成员决定一切。
- Hot steel is quenched to harden it. 烧热的钢淬火使它坚硬。
- The varnish takes a few minutes to harden. 清漆几分钟就能变硬。
- This concept is at the very core of her theory. 这个概念是她理论的核心。
- He was a military man to the core. 他是个地地道道的军人。
- Let's get to the core of the argument. 咱们进入实质性的辩论吧。
- Don't harden your heart against him. 别对他硬心肠。
- The core of our appeal is freedom of speech. 我们的要求的核心是言论自由。
- The earth has a core and a mantle around it. 地球的中心是地核，地核的周围是地幔。
- He ate the plum, and threw the core away. 他吃掉了李子，并扔掉了果核。
- So we find that hardening operation is made up of heating and quenching. 因此我们发现淬火工序包括加热和淬硬两个步骤。
- Let's get to the core of the matter. 让我们看看事情的核心。
- Each student studies four core subjects. 每个学生学习四门基础课。
- Please harden in the main ropes, the sail's not tight enough! 请把主要的绳索拉紧些，帆扯得不够紧！
- He is really rotten to the core. 他真是坏透了。
- Anneal means make harden steel soft and remove brittleness. 退火就是使淬火钢变软并消除其脆性。
- It took a long time to get to the core of the affair. 花了很长时间才抓住这件事的要害。
- Able to set and harden under water, as Portland cement. 在水中变硬的能在水下定型并变硬的，如波特兰水泥
- He often went to the gym to harden his muscles. 他过去常到健身房锻炼肌肉。
