Not until then did the old man realize the woman felt angry because her son did not study well and that she wanted her son to know the significance of studies by taking the old man as a live example.
这时，老人才明白，中年女人生气是因为孩子的学习成绩不好，她要让孩子明白学习的重要性，而自己成了她“现身说法”的“活教材”。
The equilibrium absorption studies indicate that the permselectivity of the anion exchange membrane is related not only to the component solubility, but mean diffusion coefficient as well.
三种抗衡离子膜的平衡吸收实验表明，该阴离子膜的选择渗透性不仅与醇水在膜中的溶解度有关，而且取决于平均扩散系数。
When I first entered college as a freshman, I was afraid that I was not able to do well in my studies.
当我第一次以新生的身份进入大学时，我恐怕会在学业方面做不好。
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