1·Why is he so often absent on Thursdays?
他为什么经常星期四缺席？
2·Mr. Long agreed that it seemed strange for David to be absent so often on gym days.
龙老师也认为，大卫经常缺席体育课这件事看起来很奇怪。
3·Yonder comes the famous Mr. Mole, of whom you so often have heard your father tell!
那边是大名鼎鼎的莫尔先生，你常听你父亲说起他！
4·Why do you think displacement activities are so often comfort behaviors, such as grooming?
你为什么会认为梳理打扮一类的置换活动常常是令人舒适的行为呢？
5·Colds mutate even while they're infecting you, and new strains pop up so often that by the time drug-makers create a vaccine against one variation, the serum is already out of date.
即使在感染你的时候，感冒病毒也会发生变异，而且新的病毒毒株经常出现，以至于当制药商研制出针对其中一种变异的疫苗时，血清已经过时了。
6·She's going to come back every so often.
她会偶尔回来一下。
—— 《柯林斯英汉双解大词典》
7·You're bound to mistime a tackle every so often.
你肯定会有错估进攻时机的时候。
—— 《柯林斯英汉双解大词典》
8·Every so often, a new martial art arrives from the East.
时不时地，一种新武术从东南亚到达至此。
—— 《柯林斯英汉双解大词典》
9·Hard work and talent so often go unrecognized and unrewarded.
勤奋和天赋很容易不被认可也得不到奖励。
—— 《柯林斯英汉双解大词典》
10·I've made this trip so often, I could do it with my eyes shut.
我经常走这条路，闭着眼睛都能找到。
—— 《牛津词典》