这家公司坚持不懈地致力于寻求一种能主导市场的产品。
The company is engaged in the eternal search for goods that will lead the market.
我想知道，我为什么要如此不遗余力地、全身心地、坚持不懈地致力于英语学习。
I wonder why I should bother making so committed and lasting efforts to learn English.
我想知道，我为什么要如此不遗余力地、全身心地、坚持不懈地致力于英语学习。
I wonder why I should bother making so committed and lasting efforts to learn English.
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