Be concerned at
为...而忧虑重重
🧩 词语组成解析
be
[bi]
v. 是;有，存在;做，成为;发生;
aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质;
concerned
[[kən'sə:nd]]
a. 关心的, 有关的, 参与的, 担心的
at
[æt]
prep. （表示位置）在;在（某时间或时刻）;以，达; 向，朝;
n. 阿特（老挝辅币单位，100 阿特 = 1 基普）;
🗣️ 情景例句
His number is five, five, five, seven, five, three, two.
他的号码是5557532。
Call no man happy until he dies.
盖棺才能定论。
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。