你不能未经允许就看别人的私人信件。 - Zhictionary

Zhictionary

你不能未经允许就看别人的私人信件。

You shouldn't read other people's private letters without permission.

Source: Tatoeba

Sentence Composition

you (informal, as opposed to courteous 您 nín)

you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)

cannot
must not
should not

not having undergone
without (having gone though a certain process)

to permit
to allow

(after a suppositional clause) in that case; then
(after a clause of action) as soon as; immediately after
(same as 就是 jiùshì) merely; nothing else but; simply; just; precisely; exactly
only; as little as
as much as; as many as
to approach; to move towards
to undertake; to engage in
(often followed by 著 zhe) taking advantage of
(of food) to go with
with regard to; concerning
(pattern: 就 jiù ... 也 yě ...) even if ... still ...
(pattern: 不 bù ... 就 jiù ...) if not ... then must be ...

to look after
to take care of
to watch
to guard

to see; to look at
to read
to watch
to visit; to call on
to consider; to regard as
to look after
to treat (a patient or illness)
to depend on
to feel (that)
(after a verb) to give it a try
to watch out for

other people; others; other person

others; other people

of; ~'s (possessive particle)
(used after an attribute when it modifies a noun)
(used at the end of a declarative sentence for emphasis)
(used after a noun, verb or adjective to form a nominal expression, as in 皮革的 pígéde "one made of leather" or 跑堂兒的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
also pr. dì or di in poetry and songs

a taxi; a cab (abbr. for 的士 dīshì)

really and truly

(bound form) bull's-eye; target

private
personal
interpersonal
sb with whom one has a close personal relationship
a member of one's clique

letter (sent by mail)