=1

你

nǐ

you (informal, as opposed to courteous 您 nín)

=1

你

nǐ

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.)

=2

真是

zhēnshi

indeed; truly (coll.) (used to express disapproval, annoyance etc)

=2

真是

zhēnshì

(colloquial) Used to express dissatisfaction or annoyance; honestly! Used other than figuratively or idiomatically: see 真 (zhēn), 是 (shì): (it) really is; (it) truly is Used to express dissatisfaction or annoyance; honestly!

3

警惕

jǐngtì

to be on the alert vigilant alert on guard to warn