surveillance
n[U]
careful watch kept on sb suspected of doing wrong (对涉嫌者的)监视
The police are keeping the suspects under round-the-clock surveillance. 警方对疑犯昼夜监视.
You see, I put some soil in the box, sow the seed carefully like this, and then cover it with more soil.
你瞧,我在盒子里放些泥土,像这样小心地把种子播下,然后再用多一点儿的土盖住种子。
Then grow some tomatoes in one box which has plant food in the soil and some in another box which doesn't.
然后,在一个箱子里种一些西红柿,里面的土有养料,而在另一个箱子里也种一些,但里面的土没有养料。
My dear friend, Mathilde. Let me tell you something. That necklace you borrowed from me wasn't a real diamond necklace. It wasn't valuable at all. The stones in the necklace were made of glass. It was worth five hundred francs at the most.