What does Sb mean?

Early in the morning, the children are carrying Sb (Schoolbag );
The adults are busy Sb (Work );
Now, let's go online and see what new messages are there. Sb (Dissemination );
In the evening, when I order food, I say Sb (Casually );
Eat enough to go to the street Sb (Walking );
Hold it when you come back. Sb (Mouse );
I am in the mood to write in my blog Sb (Casual );
People all daySb !
I had the honor to have a chat with two American girls and thought I had passed the English language, but I only heard one sentence Sb (Somebody = Sb .);
People are really alive Sb (Failed ........
That year I Sb (18) when the troops Sb (Soldiers ). At the beginning, I used Sb (Sentinel ).
See Sb (Above) We will salute you. You won't be able to watch it for a few hoursSb (Watch), fart big things should be timely Sb (Report). You need to take a small picture when practicing your posture. Sb (Sandbags), one day down, connect Sb (Walking) the strength is gone.
I just Sb (Casually) I made up a reason to say that I Sb (ILL) want to turn Sb (Sailor), the result is divided into one Sb (Opening board) on, rely on, it's my Sb (Body), dizzy me, even last month's mealSb (Scallop ), Sb (Slice) I spit it out. Sb What did the child do.
The leaders intend to change me Sb (Paratroopers), I said I wouldn't go. If this was an accident, Sb (Bound) becomes Sb (Wounded), if Sb (Hand back) or Sb (Upper arm) wound wrap Sb (Gauze), a maximum Sb (SCAR), if the leg breaks, it will become Sb (Sun Kun) if you encounter Sb (Shanbao) Sb (Dodge) Not good, that's real Sb (Discount.
So I simply Sb (Collect troops) quit. Before and after Sb (Three hundred) days, except tired faces Sb (White), nothing to learn. Go Sb (Go to work? I didn't take it seriously when I was studying. Sb (Schoolbag), do not readSb (Books), now connected Sb (Mouse) Will not be used.
I had to show it to others. Sb (Water Pump), I connected Sb I have never touched any of them. What do I know? That Sb (Device), no description, no Sb (Trademark) there are no other Sb (Identification) Mark, noisy Sb (Sonic) in the room Sb (Spread), like Sb (Landslide. Suddenly, Sb (Incident) happened, I Sb (Side) Sb (Slate) suddenly fell down.
I went there like this, and I never had any big data in my life. Sb (Manual), connection Sb (Handy) Things are not well done, nor are they physically fit, and they cannot be used. Sb (Version 3 ). Ah, when I sing good fortune in the sky Sb (Sanbao), I saw future generations engraved on my tombstone -- Sb (Failed ).