öλÔÓéÀֵǼÈë¿ÚÏÂÔØ

A: Ultraviolet light is harmful to our skin.
B: So you better wear some sunscreen when you are out in the sun.
ultraviolet
a. ×ÏÍâÏßµÄ

A: Were you all able to come to a unanimous decision?
B: No, one person disagreed with us.
unanimous
a. È«Ìåһֵģ¬Ò»ÖÂͬÒâµÄ

A: I didn¡¯t think that you would be able to carry the heavy box.
B: Well, you shouldn¡¯t have underestimated my strength.
underestimate
vt. ¶Ô¡­¡­¹À¼Æ²»×㣬µÍ¹À
n. ¹À¼Æ²»×㣬µÍ¹À

A: I don¡¯t understand the ideas that underlie your essay.
B: Oh, let me explain them again.
underlie
vt. ¹¹³É¡­¡­µÄ»ù´¡£¨»òÆðÒò£©£¬ÒýÆð

A: What is the underlying reason for doing this journey?
B: To explore a new region of the country.
underlying
a. º¬ÐîµÄ£¬Ç±ÔÚµÄ

A: Philip always undermines my opinions.
B: Don¡¯t worry, he is just trying to start an argument.
undermine
vt. 1¡£°µÖÐÆÆ»µ£¬Öð½¥Ï÷Èõ£»2¡£ÇÖÊ´¡­¡­µÄ»ù´¡

A: Even my underwear got wet in the rain.
B: That must have been a heavy shower.
underwear
n. ³ÄÒ£¬ÄÚÒÂ

A: Doctor, do I really need to undress ?
B: Well, I need to examine your back.
undress
vi. ÍÑÒ·þ
vt. ³ýÈ¥¡­¡­µÄÒ·þ
n. ÂãÌ壨»ò°ëÂãÌ壩µÄ״̬

A: There is a high rate of unemployment in my region.
B: But I hear that it is not as bad as last year.
unemployment
n. ʧҵ£¬Ê§ÒµÈËÊý

A: Haven¡¯t you finished the book yet?
B: No, the plot is just unfolding .
unfold
vi 1¡£Õ¹¿ª£¬´ò¿ª£»2¡£ÏÔ¶£¬Õ¹ÏÖ
vt. Õ¹¿ª£¬´ò¿ª

A: Let¡¯s all sing a song.
B: Do you think that will help to unify our group?
unify
vt. 1¡£Ê¹ÁªºÏ£¬Í³Ò»£»2¡£Ê¹Ïàͬ£¬Ê¹Ò»ÖÂ

A: Gavin unleashed some nasty comments at me.
B: Don¡¯t mind him, he is always rude.
unleash
vt. 1¡£·¢Ð¹£¬·¢³ö£»2¡£½â´ø×Ó·Å¿ª

A: Did you hear the latest news?
B: No, can you update me on the details?
update
vt. ¸üУ¬Ê¹ÏÖ´ú»¯
n. ×îÐÂÐÅÏ¢

A: You always stick to your word.
B: Yes, I like to uphold my principles.
uphold
vt. Ö§³Ö£¬Î¬»¤£¬Ô޳ɣ¬ÈÏ¿É

A: There was an uprising in my country in the 1920s.
B: Was that when you declared an independent nation?
uprising
n. ÆðÒ壬±©¶¯

A: There will be uproar if my homework is not submitted in time.
B: Oh, but you are usually such a good student.
uproar
n. ³³ÄÖ£¬ÐúÏù£¬É§ÂÒ

A: I heard that some toxic uranium was dumped into the sea.
B: Yes, it is shocking news.
uranium
n. ÓË

A: There is a terrible smell of urine in this room.
B: I agree, but I don¡¯t know where it is coming from.
urine
n. Äò

A: The usher directed me to the wrong seat.
B: Oh, I think that he has just started the job.
usher
n. Òý×ùÔ±£¬ÕдýÔ±£¬Ó­±öÔ±
vt. 1¡£Òý£¬Á죬Åãͬ£»2¡£Ô¤±¨£¨¡­¡­µÄÀ´µ½£©£¬Ðû¸æ£»3£¬´´Ê¼£¬¿ª±Ù

A: Can we make this dish for dinner tonight?
B: No, I don¡¯t have the right cooking utensils .
utensil
n. Æ÷Ãó£¬Æ÷¾ß