at ·phrase

起初我以为她不友好，但实际上她只是害羞。

___At ___first I thought she was unfriendly, but actually she's just shy.

起初，当我到达时我非常紧张，因为我不认识任何人，但后来一个女孩开始和我说话，我感觉好多了。

___At ___first, when I arrived I was very nervous because I didn't know anyone, but then a girl started talking to me and I felt better.

起初这个任务似乎很难，但练习后变得容易了。

___At ___first the task seemed difficult, but it became easier with practice.