Contains
v. 包含；容纳；包含某字符串（contain的单三形式）
🗣️ 情景例句
Will you be so kind as to help me out of the difficulty?
帮助我克服困难，好吗？
It's a bit too hard.
这有点太难了吧。
The basic features include a crest (the highest point of the wave),
它们的基本特征包括浪峰（波浪的最高点）