N-VAR

艱苦勞動(dòng);難題

例句

n.

<文>艱苦勞動(dòng),辛勤努力

分娩的陣痛

Noun

1. concluding state of pregnancy; from the onset of labor to the birth of a child;

2. use of physical or mental energy; hard work;

Verb

1. work hard;