We have no meanings for "laboured at" in our records yet.
1 In the meantime, great numbers of men laboured at the walls.
2 On the south and west sides the enemy still laboured at their fortifications.
3 How he had toiled and laboured at the desk before him!
4 How often, at that moment, he laboured at some future Spectator!
5 I laboured at one thing and another, sometimes engaging in the most menial employments.
6 Indeed, not one, but several poets laboured at this task.
7 So in turn the philosophers laboured at their problem.
8 I roared to Job to back water, whilst I dragged and laboured at my oar.
9 How carefully he had laboured at his own destruction.
10 Who can tell how poor was their food while they laboured at their daily toil?
11 He laboured at a job, long or briefly, till it was finished; and then moved on.
12 The win against England seemed laboured at times.
13 All night the troops laboured at this task.
14 Geoffrey said no more, but laboured at the broken paddle gallantly and with an ever-failing strength.
15 All day she laboured at her many tasks.
16 He had laboured at the detailed plans, wrestled with measurements to scale, until his eyes ached.
Other examples for "laboured at"
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This collocation consists of: Laboured at through the time
Laboured at across language varieties