She hemmed her skirt.她给自己的裙子缝褶边。The brick path to the door was hemmed in on either side by tall, unkempt boxwood hedges.通往门口的砖路两旁是高大、杂乱的黄杨树篱。Tim hemmed and hawed, but finally told his boss the truth.蒂姆起初支支吾吾，但最终还是把真相告诉了老...
Therefore, the conventional gas content measurement is invalid to lignite.因此, 传统的煤层气含量确定方法不适用于褐煤.Therefore, P should be substituted by a response surface for each genotype.因此, P必须被各个基因型的反应面所代替.The epistle deals therefore...