1.toil n.苦工, 难事；劳苦, 辛苦

例句：

I was tired with hours of toil.
我因数小时的劳动而疲乏。

2.ordeal n. 严酷考验, 痛苦经历, 煎熬

例句：

You've come through the ordeal with flying colours.
你已经成功地经受了考验。

3.buoyancy n.浮性,浮力,轻快

例句：

To move with lightness and buoyancy.
轻快活泼地移动

4.juncture n.时机, 关头, 关键, 事情的状况

例句：

At the most critical juncture we took turns in watching that point.
在最为紧急的时刻，我们轮流监视着那个地方。