23201溯源to investigate the origin of sth; to trace a river upstream back to its source
23205无碍without inconvenience; unimpeded; unhindered; unobstructed; unfettered; unhampered
23206无计可施(lit.) to have no strategy to apply (idiom); (fig.) to be out of ideas; at one's wit's end
23207燕京Yanjing, an old name for Beijing; capital of Yan at different periods
23210物产products; produce; natural resources
23213异物rarity; rare delicacy; foreign matter; alien body; the dead; ghost; monstrosity; alien life-form
23214发扬光大to develop and promote; to carry forward; to bring to great height of development
23218尽职to discharge one's duties; conscientious
23220直白to speak frankly; frank; open; blunt
23221眼罩eye-patch; blindfold; eye mask; goggles; eyeshade; blinkers (for a horse etc)
23222瞭望to look into the distance (esp. from a height); to keep a lookout
23223知悉to know; to be informed of
23224碾stone roller; roller and millstone; to grind; to crush; to husk
23225碍事to be in the way; to be a hindrance; (usu. in the negative) to be of consequence; to matter
23229秘籍rare book; cheat code (video games)
23232笑柄a matter for ridicule; an object of ridicule; laughingstock
23233精进to forge ahead vigorously; to dedicate oneself to progress
23235紫菜edible seaweed of genus Porphyra or genus Pyropia, esp. one used to make dried sheets of nori
23240缉毒to counter narcotics trafficking; drug enforcement
23251自小since childhood; from a young age
23256菜刀vegetable knife; kitchen knife; cleaver
23258万豪Marriott International (hotel chain)
23259药学pharmacy (science of preparing medicines)
23261亏欠to have a deficit; to be in the red; to owe
23262复试to sit for the second round of a two-stage exam
23267诞birth; birthday; brag; boast; to increase
23268调换to exchange; to change places; to swap
23274贺卡greeting card; congratulation card
23275赠品gift; complimentary item; freebie; giveaway
23276起色a turn for the better; to pick up; to improve
23278赵云Zhao Yun (-229), general of Shu in Romance of the Three Kingdoms
23279辅导员student counselor (in Chinese universities)
23285适逢to just happen to coincide with
23287避税to avoid taxation; tax avoidance
23288酒会drinking party; wine reception
23289重磅(of a bomb) powerful; (of news) impactful; significant; (of fabric) heavy-duty
23291钯palladium (chemistry); Taiwan pr. bā
23292钳pincers; pliers; tongs; claw (of animal); to grasp with pincers; to pinch; to clamp; to restrain; to restrict; to gag
23294钟楼bell tower; campanile; clock tower; Bell Tower, historic attraction in Xian, Beijing etc
23297门市retail sales; retail outlet; store
23299闭眼to close one's eyes; (fig.) to die; to pass away
23300开导to talk sb round; to straighten sth out; to enlighten