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1·The Labour pains were unbearable.

体力劳动的辛苦让人无法忍受。

2·On her way back from the fields, she suddenly doubled over with labour pains.

的翻译是：在回家的路在字段，她突然翻了一番，阵痛。

3·In a panic at her labour pains, he hired a car and drove his son and wife 160km back to their old town for the birth.

在其儿媳妇出现宫缩镇痛时，他只能雇车把儿子和儿媳妇带回160公里外的旧城镇生产。

4·The birth itself drags on for two nights. During thefirst night labour pains come on the cow elephant and the calf goes to itsfinal birth position.

它的出生拖了两个晚上。第一晚母象开始阵痛，小象来到最后出生的位置。