r. to a very great extent or degree
r. in a manner that facilitates
r. in such a condition or manner, especially as expressed or implied
r. to a certain unspecified extent or degree
adv. 如此, 如是, 如...那样
conj. 所以, 因此
pron. 这样
1. She was tired, so she went to bed early.
她很累，所以她早早上床睡觉。
2. It was raining, so we stayed indoors.
外面在下雨，所以我们呆在室内。
3. I forgot my umbrella, so I got wet.
我忘了带雨伞，所以我淋湿了。