我们的部队正沿河掘壕固守。Our forces are dug in along the river.欧洲要保持稳定，德国必须统一并固守北约。A united Germany must be firmly anchored in NATO if Europe is to remain stable.如果敌人胆敢进攻我们固守的阵地, 我们就消灭他们.If the enemy dares to attack us in these entr...
He cleaned the flakes away with his coat sleeve.他用大衣袖子把碎屑掸掉。Bold as you please, she grabbed me by the sleeve.她真够大胆的，竟抓住了我的衣袖。He wore a black band on the left sleeve of his jacket.他在夹克衫的左袖上戴了一条黑箍儿。...
卫星重新进入大气层，烧成灰烬。The satellite re-entered the atmosphere and burned up.他下令将他们的村庄烧成灰烬。He ordered their villages burned to ashes.房子被烧成了灰烬.The house was burnt down to ashes....
它的致密的形态是其失活的反映.Its compact appearance is a reflection of its inactivity.如果这些酸贮藏在细胞质中,细胞质的酶类将要失活.Inactivation of cytoplasmic enzymes would occur if the acids were stored in the cytoplosm.简要介绍了催化剂的再生和防失活等方面的技术.The methods ...