一旦
yī dàn
in case (sth happens), if, once (sth happens, then...), when, in a short time, in one day
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我发现了一个蛋
wǒ fā xiàn le yī gè dàn
I found an egg
我想再吃一块蛋糕
wǒ xiǎng zài chī yī kuài dàn gāo
I want to eat another piece of cake
你是混蛋。
nǐ shì hún dàn。
You're a bastard.
我能做蛋糕
wǒ néng zuò dàn gāo
I can make a cake
他是个坏蛋
tā shì gè huài dàn
He's a bad man
这个蛋糕的形状很像一个心形。
zhè ge dàn gāo de xíng zhuàng hěn xiàng yī gè xīn xíng。
This cake is shaped much like a heart.
可惜没有蛋糕
kě xī méi yǒu dàn gāo
Its a pity there is no cake
蛋糕上有蓝莓。
dàn gāo shàng yǒu lán méi。
There are blueberries on the cake.
但不是在办公室
dàn bù shì zài bàn gōng shì
But not in the office
巢里有四个鸡蛋
cháo lǐ yǒu sì gè jī dàn
There are four eggs in the nest