请问有enough as to这个用法吗？内附GWD例题。。

pennyrun · 发表于 2011-8-16 19:11:36

GWD-23-Q13 Researchershypothesize that granitic soil is the ideal construction material for the deserttortoise because it is not so hard that it makes burrowing difficult or sosoft that it could cause tunnels to collapse.

so hard that it makes burrowing difficult or so soft that it could cause

hard enough to make burrowing difficult or soft enough as to cause
我觉得B好一些啊是因为enough as to错的吗？

yamyam0806 · 发表于 2011-8-16 20:25:13

enough to 是比较口语化的说法一般不对

pennyrun · 发表于 2011-8-16 21:45:11

THX a llllllllot~

请问有enough as to这个用法吗？内附GWD例题。。

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