这一承诺能维持多久还不确定。It is an open question how long that commitment can last.南希不确定德克是不是在勾引她。Nancy wasn't sure if Dirk was making a pass at her.如果能重新活过，我不确定自己是否愿意做出任何改变。I doubt I would change anything if I had my time agai...
I held my breath and sank under the water.我屏住呼吸沉入水底。She sank into an armchair and crossed her legs.她坐到一把扶手椅上，跷起了二郎腿。He sank the spade into the ground, and went at it.他把铁锹插到地里，开始卖力地干了起来。...
Sheer above us rose the Spy - glass, here dotted with single pines, there black with precipices.我们的头顶上方耸立着陡峭的望远镜山, 上面长着几棵孤零零的松树, 其他地方则是黑黝黝的悬崖绝壁.Few people can climb up to the sheer precipices and overhanging rocks.悬崖绝壁很少...