stay silent 保持沉默
stay still 一直呆着
stay up 挺立;熬夜
step by step 一步一步地
step into 走到……(内部)
step onto 走到……(表面)
sth. be being built ……正在建设
sth. be beyond question 毫无疑问
sth. be considered (to be) ……被……看作
sth. be familiar to sb. 某人对……熟悉
sth. be in question ……在考虑范围之内
sth. be on sale ……正被出售
sth. be out of question 毫无疑问
sth. be out of the question 不可能的、不合情理的
sth. be supplied to sb. 某物被提供给……
sth. be taken for ①被当作、被看作 ②误认为……
sth. be to the taste 适合……的口味、品味
