we must begin testing this instrument,no matter___difficult it is A :what B:how 为什么不能用A呢

问题描述:

we must begin testing this instrument,no matter___difficult it is A :what B:how 为什么不能用A呢

what 一般提问什么.一般是what's the weather?what's the time now?
而how 在这题上,则侧重程度.是“无论”的意思.no matter how 一般也是惯用的,how difficult,how hard.无论有多难 的意思.
其实,你只要往下学习,这些用法及会自然掌握,就像Nice to meet you 一样.
Wish you good day.