It is a good idea to build a whelping box well in advance so the bitch has time to get used to it.
最好预先为母犬建一个产箱，这样母犬可以有时间去适应。
2
In the advance of the movement, the humorous saying has acquired a proverbial currency, "Quitting smoking is the easiest thing world. I've done it hundreds of time."
在这一运动的推进中，幽默的说法众所周知：“戒烟是世界上最容易的事，我已经做过几百次了。”
3
Visitors can book a time slot a week or more in advance.