加速
jiā sù
to speed up, to expedite
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降低速度
jiàng dī sù dù
Reduce speed
这是快速的
zhè shì kuài sù de
It's fast
信使速度很快。
xìn shǐ sù dù hěn kuài。
The messenger is fast.
孩子们在快速成长。
hái zi men zài kuài sù chéng zhǎng。
Children are growing up fast.
他答应参加
tā dā ying cān jiā
She agreed to attend.
他经常加班
tā jīng cháng jiā bān
He often works overtime.
加班很常见
jiā bān hěn cháng jiàn
Overtime work is very common.
这个游戏需要快速的动作。
zhè gè yóu xì xū yào kuài sù de dòng zuò。
This game requires quick movements.
他每天都加班
tā měi tiān dōu jiā bān
He works overtime every day.
二加二等于四
èr jiā èr děng yú sì
Two add two equals four.