whilst 四级六级

Whilst the heavy ploughman snores, All with weary task fordone.

农夫们鼾息沉沉，天的辛勤。

He wrote this whilst invigilating a biology examination.

这是他在生物考试考场监考时写的。

Guests can make use of Quinta De Vigia's lovely outdoor pool area whilst admiring the sea views.

您可于带有潜水区的奥林匹克标准尺寸的游泳池畅游，而您的孩子可在儿童游泳池玩乐。

Glucose cyclizes to form asix- membered pyranose ring whilst five –carbon surgars and six-carbon ketose sugars (ketohexoses) such as fructnose rings.

状结构 四碳糖和更大的糖能化，醛基或酮基与糖的另碳原子上的羟基反应。

In the later system the front ranks locked shields and presented a hedge of thrusting spears whilst the rear ranks kept up a continual barrage of missiles over the heads of the front rankers.

在晚期的作战体系中，前面几排使用盾墙和长矛，后面几排地越过前排的头顶投掷箭矢。