Trajectories
n. <物>彈道( trajectory的名詞復(fù)數(shù) ); 軌道; <數(shù)>軌線; 常角軌道
??? 情景例句
Will it cost for the transfer?
轉(zhuǎn)車要錢嗎？
Help yourself, please.
請自己用。
That's fantastic!
那真是棒極了！