Thanks for inviting me to the dinner. I'm looking forward to it.
谢谢你邀请我一起吃晚饭,约会日期早些到就好了。
Nothing must be done hastily but killing of fleas.
除非消灭跳蚤,做事不必急躁。
But here we come up against the most difficult of all obstacles to contact with people on other planets ----the astronomical distances which separate us.