However, the process took a long time and was labour-intensive.

但是，这个过程花费了很长时间，并且这个过程还消耗了大量劳力。

youdao

Even though the climate is suitable, tea-growing is simply too costly, since the process is labour-intensive and resists automation.

尽管气候适宜，但是种茶仍然十分昂贵。因为整个种茶过程都是劳动力密集的而不适合机器控制。

youdao

At the moment, it is often cheaper to process virgin materials, despite the extra energy required, because collecting and sorting recyclables is so labour-intensive.

目前，尽管原材料加工需要额外的能源，但往往很便宜，因为回收时收集和分类需要更多劳动力。

youdao

It is a labour intensive process requiring significant laboratory resource over a number of years, limiting drug companies' willingness to invest.

BBC: Bill gates

With most of the work done by hand without any help from modern technology, its production is a lengthy and labour-intensive process.

BBC: The gateway to Kilimanjaro

Even though the climate is suitable, tea-growing is simply too costly, since the process is labour-intensive and resists automation.

ECONOMIST: America's tea boom