Methylphosphine
[化] 甲膦
🗣️ 情景例句
Well, I'll tell Richard,
嗯， 我会告诉Richard，
He has lived here for a year.
他在这里住了一年了。[表示持续到现在的行为]
It can take as long as eight days to rig up rope ladders and to establish supply bases before a descent can be made into a very deep cave.
有时需要花费整整8天时间来搭起绳梯，建立供应基地，然后才能到一个很深的洞穴里。