civill

5♣ for me.

Pass,for no fit,nor defence HCPs.

I'm with GREG here.

IMO,blue bidding system is easiest to deal with this type of hands.

I think 4♥ is a good contract,this is a sequence to arrival it: [1♥-1♠] [2♦-3♣] 4SF [4♥-pass]

Now,I'll pass 3NT;but I don't think that 2NT response is better than 3♥;

I'll bid 2♠ if PD bid 2♥ instead of 2♦;now 3♦ is my better choice

IMO,if there were a slam,the bidding sequence would be as belows: (1), [1♠-2♦] [3♦-3♥] [4♣ cue-bid for ♣controls without 6card ♠ (2), [1♠-2♦] [2♠-3♥] [4♣-4♦] cue-bid for ♣&♦,with trump options [? 4♠good ♠ 5♦good ♠ and ♦supports 4♥cue-bid ... Perhaps,there are other good sequences;

Very good ideas, but IMO, both weak two and strong two opening without clear forcing requests will transfer hard response problem to PD.

2♠

I'll not pass at the 1st round,but may at the 2nd .

Echognome,now you take a trap pass at red vs white,then you should know how to deal with your trap. At the 4th round,a grand Club slam may be lost.

I think I'd better not to play any playing cards including bridge again,because the Chinese pronunciation of "playing cards" is spoken as "Pu Ke". Is it dirty like "puke"?

Jacoby transfer is a good convention which I like most,although Jacoby was disputed in history.

dbl or 2!D or 2!S for 3NT game trial,depending on the used conventions with PD;

I'm with Helmer ,and more as below: It's better not to bid directly,or without enough good HCPs/shape to bid directly.

Pass...1C......Pass........1H Pass(?) Could u understand now?

It's too late to decide whether bid,Just getting not too many dirty water!

A good design!

Which day is birthday?Because the Orient is keeping ahead a day to the West.That's a question for many experts. Might a geographic expert have the correct key.

1♦ or 5♦? 3♦!

I don't think that the dbl is suitable here.

Directly 3NT!

I'll open 1♥ with well sense,but 2♥ with bad sense in the field.

I don't think grand slams are good contracts for this hand, even if there were a way to them.But 6♠ should be arrived.How about this way: [1♠-3NT] OJS(over jump shift for good trump support & good HCPs) [4♣-4♥] [5♦-5♥] [6♠-pass]