First of all she just smiled, then she started to laugh.
他
们
tā menthey
老师 给 他们 安排 好 了 座位 。
Lǎoshī gěi tāmen ānpái hǎole zuòwèi.
The teacher arranged the seats for them.
约
定
yuē dìngto agree on sth (after discussion); to conclude a bargain; to arrange; to promise; to stipulate; to make an appointment; stipulated (time, amount, quality etc); an arrangement; a deal; appointment; undertaking; commitment; understanding; engagement; stipulation
zuò wéione's conduct; deed; activity; accomplishment; achievement; to act as; as (in the capacity of); qua; to view as; to look upon (sth as); to take sth to be
动物 的 粪便 可以 作为 肥料 使用 。
dòng wù de fèn biàn kě yǐ zuò wéi féi liào shǐ yòng。